B. Abolfathi, D. S. Aguado, G. Aguilar, C. A. Prieto, A. Almeida et al., The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point Observatory Galactic Evolution Experiment, The Astrophysical Journal Supplement Series, vol.235, issue.2, p.42, 2018.
URL : https://hal.archives-ouvertes.fr/hal-01787805

A. V. Afanasiev, I. V. Chilingarian, S. Mieske, K. T. Voggel, A. Picotti et al., A 3.5 million Solar masses black hole in the centre of the ultracompact dwarf galaxy fornax UCD3, Monthly Notices of the Royal Astronomical Society, vol.477, issue.4, pp.4856-4865, 2018.

C. P. Ahn, A. C. Seth, M. D. Brok, J. Strader, H. Baumgardt et al., Detection of Supermassive Black Holes in Two Virgo Ultracompact Dwarf Galaxies, The Astrophysical Journal, vol.839, issue.2, p.72, 2017.

C. P. Ahn, A. C. Seth, M. Cappellari, D. Krajnovi?, J. Strader et al., The Black Hole in the Most Massive Ultracompact Dwarf Galaxy M59-UCD3, The Astrophysical Journal, vol.858, issue.2, p.102, 2018.

K. Bekki, W. J. Couch, and M. J. Drinkwater, Galaxy Threshing and the Formation of Ultracompact Dwarf Galaxies, The Astrophysical Journal, vol.552, issue.2, pp.L105-L108, 2001.

K. Bekki, W. J. Couch, M. J. Drinkwater, and Y. Shioya, Galaxy threshing and the origin of ultra-compact dwarf galaxies in the Fornax cluster, Monthly Notices of the Royal Astronomical Society, vol.344, issue.2, pp.399-411, 2003.

K. Bekki and K. C. Freeman, Formation of ? Centauri from an ancient nucleated dwarf galaxy in the young Galactic disc, Monthly Notices of the Royal Astronomical Society, vol.346, issue.2, pp.L11-L15, 2003.

K. Bekki and D. Yong, On the origin of the stellar halo and multiple stellar populations in the globular cluster NGC 1851, Monthly Notices of the Royal Astronomical Society, vol.419, issue.3, pp.2063-2076, 2011.

E. F. Bell, D. H. Mcintosh, N. Katz, and M. D. Weinberg, The Optical and Near?Infrared Properties of Galaxies. I. Luminosity and Stellar Mass Functions, The Astrophysical Journal Supplement Series, vol.149, issue.2, pp.289-312, 2003.

M. Bellazzini, R. A. Ibata, S. C. Chapman, A. D. Mackey, L. Monaco et al., THE NUCLEUS OF THE SAGITTARIUS DSPH GALAXY AND M54: A WINDOW ON THE PROCESS OF GALAXY NUCLEATION, The Astronomical Journal, vol.136, issue.3, pp.1147-1170, 2008.

E. Bertin and S. Arnouts, SExtractor: Software for source extraction, Astronomy and Astrophysics Supplement Series, vol.117, issue.2, pp.393-404, 1996.

B. Binggeli, A. Sandage, and G. A. Tammann, Studies of the Virgo Cluster. II - A catalog of 2096 galaxies in the Virgo Cluster area. V - Luminosity functions of Virgo Cluster galaxies, The Astronomical Journal, vol.90, p.1681, 1985.

J. P. Blakeslee and R. B. Degraaff, ULTRA-COMPACT DWARF CANDIDATES NEAR THE LENSING GALAXY IN ABELL S0740, The Astronomical Journal, vol.136, issue.6, pp.2295-2305, 2008.

J. P. Blakeslee, A. Jordán, S. Mei, P. Côté, L. Ferrarese et al., THE ACS FORNAX CLUSTER SURVEY. V. MEASUREMENT AND RECALIBRATION OF SURFACE BRIGHTNESS FLUCTUATIONS AND A PRECISE VALUE OF THE FORNAX-VIRGO RELATIVE DISTANCE, The Astrophysical Journal, vol.694, issue.1, pp.556-572, 2009.
URL : https://hal.archives-ouvertes.fr/hal-02776225

C. Blom, D. A. Forbes, C. Foster, A. J. Romanowsky, and J. P. Brodie, The SLUGGS Survey: new evidence for a tidal interaction between the early-type galaxies NGC 4365 and NGC 4342, Monthly Notices of the Royal Astronomical Society, vol.439, issue.3, pp.2420-2431, 2014.

H. Böhringer, U. G. Briel, R. A. Schwarz, W. Voges, G. Hartner et al., The structure of the Virgo cluster of galaxies from Rosat X-ray images, Nature, vol.368, issue.6474, pp.828-831, 1994.

A. Boselli, E. Voyer, S. Boissier, O. Cucciati, G. Consolandi et al., The GALEX Ultraviolet Virgo Cluster Survey (GUViCS), Astronomy & Astrophysics, vol.570, p.A69, 2014.
URL : https://hal.archives-ouvertes.fr/hal-02991012

A. Boselli, M. Fossati, L. Ferrarese, S. Boissier, G. Consolandi et al., A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE), Astronomy & Astrophysics, vol.614, p.A56, 2018.
URL : https://hal.archives-ouvertes.fr/hal-02990996

J. Brinchmann, D. Kunth, and F. Durret, Galaxies with Wolf-Rayet signatures in the low-redshift Universe, Astronomy & Astrophysics, vol.485, issue.3, pp.657-677, 2008.

J. P. Brodie, A. J. Romanowsky, J. Strader, and D. A. Forbes, THE RELATIONSHIPS AMONG COMPACT STELLAR SYSTEMS: A FRESH VIEW OF ULTRACOMPACT DWARFS, The Astronomical Journal, vol.142, issue.6, p.199, 2011.

M. Cantiello, J. P. Blakeslee, L. Ferrarese, P. Côté, J. C. Roediger et al., The Next Generation Virgo Cluster Survey (NGVS). XVIII. Measurement and Calibration of Surface Brightness Fluctuation Distances for Bright Galaxies in Virgo (and Beyond), The Astrophysical Journal, vol.856, issue.2, p.126, 2018.
URL : https://hal.archives-ouvertes.fr/hal-02990990

K. Chiboucas, R. B. Tully, R. O. Marzke, S. Phillipps, J. Price et al., ULTRA-COMPACT DWARFS IN THE COMA CLUSTER, The Astrophysical Journal, vol.737, issue.2, p.86, 2011.

I. V. Chilingarian and G. A. Mamon, SDSS J124155.33+114003.7 ? a missing link between compact elliptical and ultracompact dwarf galaxies, Monthly Notices of the Royal Astronomical Society: Letters, vol.385, issue.1, pp.L83-L87, 2008.

P. Côté, D. E. Mclaughlin, J. G. Cohen, and J. P. Blakeslee, ApJ, vol.591, p.850, 2003.

P. Côté, J. P. Blakeslee, and L. Ferrarese, ApJS, vol.153, p.223, 2004.

P. Côté, S. Piatek, and L. Ferrarese, ApJS, vol.165, p.57, 2006.

R. A. Crain, J. Schaye, and R. G. Bower, AJ, vol.137, p.4361, 2009.

C. Da-rocha, S. Mieske, I. Y. Georgiev, M. Hilker, B. L. Ziegler et al., Two formation channels of ultra-compact dwarf galaxies in Hickson compact groups, Astronomy & Astrophysics, vol.525, p.A86, 2010.

J. Dabringhausen, P. Kroupa, J. Pflamm-altenburg, and S. Mieske, LOW-MASS X-RAY BINARIES INDICATE A TOP-HEAVY STELLAR INITIAL MASS FUNCTION IN ULTRACOMPACT DWARF GALAXIES, The Astrophysical Journal, vol.747, issue.1, p.72, 2012.

B. J. De bórtoli, L. P. Bassino, J. P. Caso, and A. I. Ennis, A Gemini/GMOS study of the bright elliptical galaxy NGC 3613 and its globular cluster system, Monthly Notices of the Royal Astronomical Society, vol.492, issue.3, pp.4313-4324, 2020.

M. Drinkwater, K. Bekki, and W. Couch, Extragalactic Star Clusters, vol.207, p.287, 2002.

M. J. Drinkwater, M. D. Gregg, W. J. Couch, H. C. Ferguson, M. Hilker et al., Ultra-Compact Dwarf Galaxies in Galaxy Clusters, Publications of the Astronomical Society of Australia, vol.21, issue.4, pp.375-378, 2004.

M. J. Drinkwater, M. D. Gregg, and M. Hilker, , vol.423, p.519, 2003.

M. J. Drinkwater, J. B. Jones, M. D. Gregg, and S. Phillipps, PASA, vol.17, p.227, 2000.

P. R. Durrell, P. Côté, E. W. Peng, J. P. Blakeslee, L. Ferrarese et al., THE NEXT GENERATION VIRGO CLUSTER SURVEY. VIII. THE SPATIAL DISTRIBUTION OF GLOBULAR CLUSTERS IN THE VIRGO CLUSTER, The Astrophysical Journal, vol.794, issue.2, p.103, 2014.
URL : https://hal.archives-ouvertes.fr/hal-01439527

D. W. Evans, M. Riello, F. De-angeli, J. M. Carrasco, P. Montegriffo et al., Gaia Data Release 2, Astronomy & Astrophysics, vol.616, p.A4, 2018.
URL : https://hal.archives-ouvertes.fr/hal-01867238

E. A. Evstigneeva, M. J. Drinkwater, R. Jurek, P. Firth, J. B. Jones et al., Searches for ultracompact dwarf galaxies in galaxy groups, Monthly Notices of the Royal Astronomical Society, vol.378, issue.3, pp.1036-1042, 2007.

E. A. Evstigneeva, M. D. Gregg, M. J. Drinkwater, and M. Hilker, Internal Properties of Ultracompact Dwarf Galaxies in the Virgo Cluster, The Astronomical Journal, vol.133, issue.4, pp.1722-1740, 2007.

K. Fahrion, I. Georgiev, M. Hilker, M. Lyubenova, G. Van-de-ven et al., Single metal-poor ultra compact dwarf galaxy at one kiloparsec distance from the low-mass elliptical galaxy FCC 47, Astronomy & Astrophysics, vol.625, p.A50, 2019.

F. R. Faifer, C. G. Escudero, M. C. Scalia, A. V. Smith-castelli, M. Norris et al., First confirmed ultra-compact dwarf galaxy in the NGC 5044 group, Astronomy & Astrophysics, vol.599, p.L8, 2017.

G. Fasano and A. Franceschini, A multidimensional version of the Kolmogorov?Smirnov test, Monthly Notices of the Royal Astronomical Society, vol.225, issue.1, pp.155-170, 1987.

M. Fellhauer and P. Kroupa, The formation of ultracompact dwarf galaxies, Monthly Notices of the Royal Astronomical Society, vol.330, issue.3, pp.642-650, 2002.

L. Ferrarese, P. Cote, A. Jordan, E. W. Peng, J. P. Blakeslee et al., The ACS Virgo Cluster Survey. VI. Isophotal Analysis and the Structure of Early?Type Galaxies, The Astrophysical Journal Supplement Series, vol.164, issue.2, pp.334-434, 2006.
URL : https://hal.archives-ouvertes.fr/hal-02565892

L. Ferrarese, P. Côté, J. Cuillandre, S. D. Gwyn, E. W. Peng et al., THE NEXT GENERATION VIRGO CLUSTER SURVEY (NGVS). I. INTRODUCTION TO THE SURVEY, The Astrophysical Journal Supplement Series, vol.200, issue.1, p.4, 2012.
URL : https://hal.archives-ouvertes.fr/hal-01442181

L. Ferrarese, P. Côté, R. Sánchez-janssen, J. Roediger, A. W. Mcconnachie et al., THE NEXT GENERATION VIRGO CLUSTER SURVEY (NGVS). XIII. THE LUMINOSITY AND MASS FUNCTION OF GALAXIES IN THE CORE OF THE VIRGO CLUSTER AND THE CONTRIBUTION FROM DISRUPTED SATELLITES, The Astrophysical Journal, vol.824, issue.1, p.10, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01442181

L. Ferrarese, P. Côté, L. A. Macarthur, P. R. Durrell, S. D. Gwyn et al., The Next Generation Virgo Cluster Survey (NGVS). XIV. The Discovery of Low-mass Galaxies and a New Galaxy Catalog in the Core of the Virgo Cluster, The Astrophysical Journal, vol.890, issue.2, p.128, 2020.
URL : https://hal.archives-ouvertes.fr/hal-01442181

D. A. Forbes, M. A. Norris, J. Strader, A. J. Romanowsky, V. Pota et al., The AIMSS Project ? II. Dynamical-to-stellar mass ratios across the star cluster?galaxy divide, Monthly Notices of the Royal Astronomical Society, vol.444, issue.4, pp.2993-3003, 2014.

D. A. Forbes, A. Alabi, J. P. Brodie, A. J. Romanowsky, J. Strader et al., The SLUGGS Survey: A Catalog of Over 4000 Globular Cluster Radial Velocities in 27 Nearby Early-type Galaxies, The Astronomical Journal, vol.153, issue.3, p.114, 2017.

K. Gebhardt and M. Kissler-patig, Globular Cluster Systems. I. [ITAL]V[/ITAL]?[ITAL]I[/ITAL] Color Distributions, The Astronomical Journal, vol.118, issue.4, pp.1526-1541, 1999.

R. Gratton, A. Bragaglia, and E. Carretta, A+ARv, vol.27, 2019.

A. Guérou, E. Emsellem, R. M. Mcdermid, P. Côté, L. Ferrarese et al., THE NEXT GENERATION VIRGO CLUSTER SURVEY. XII. STELLAR POPULATIONS AND KINEMATICS OF COMPACT, LOW-MASS EARLY-TYPE GALAXIES FROM GEMINI GMOS-IFU SPECTROSCOPY, The Astrophysical Journal, vol.804, issue.1, p.70, 2015.

Q. Guo, S. White, and M. Boylan-kolchin, MNRAS, vol.413, p.101, 2011.

M. Ha?egan, A. Jordán, and P. Côté, ApJ, vol.627, p.203, 2005.

D. A. Hanes, P. Côté, and T. J. Bridges, ApJ, vol.559, p.812, 2001.

M. Hilker, ArXiv Astrophysics e-prints, 2006.

M. Hilker, EAS Publications Series, vol.48, pp.219-224, 2011.

M. Hilker, L. Infante, G. Vieira, M. Kissler-patig, and T. Richtler, The central region of the Fornax cluster, Astronomy and Astrophysics Supplement Series, vol.134, issue.1, pp.75-86, 1999.

A. P. Huxor, N. R. Tanvir, M. J. Irwin, R. Ibata, J. L. Collett et al., A new population of extended, luminous star clusters in the halo of M31, Monthly Notices of the Royal Astronomical Society, vol.360, issue.3, pp.1007-1012, 2005.

A. P. Huxor, A. D. Mackey, and A. M. Ferguson, MNRAS, vol.442, p.2165, 2014.

N. Hwang and M. G. Lee, AJ, vol.135, p.1567, 2008.

N. Hwang, M. G. Lee, J. C. Lee, W. Park, H. S. Park et al., EXTENDED STAR CLUSTERS IN THE REMOTE HALO OF THE INTRIGUING DWARF GALAXY NGC 6822, The Astrophysical Journal, vol.738, issue.1, p.58, 2011.

R. A. Ibata, M. Bellazzini, K. Malhan, N. Martin, and P. Bianchini, Identification of the long stellar stream of the prototypical massive globular cluster ? Centauri, Nature Astronomy, vol.3, issue.7, pp.667-672, 2019.
URL : https://hal.archives-ouvertes.fr/hal-02393399

R. A. Ibata, G. Gilmore, and M. J. Irwin, A dwarf satellite galaxy in Sagittarius, Nature, vol.370, issue.6486, pp.194-196, 1994.

J. Janz, D. A. Forbes, M. A. Norris, J. Strader, S. J. Penny et al., How elevated is the dynamical-to-stellar mass ratio of the ultracompact dwarf S999?, Monthly Notices of the Royal Astronomical Society, vol.449, issue.2, pp.1716-1730, 2015.

J. Janz, M. A. Norris, D. A. Forbes, A. Huxor, A. J. Romanowsky et al., The AIMSS Project ? III. The stellar populations of compact stellar systems, Monthly Notices of the Royal Astronomical Society, vol.456, issue.1, pp.617-632, 2015.

Z. G. Jennings, J. Strader, A. J. Romanowsky, J. P. Brodie, J. A. Arnold et al., THE SLUGGS SURVEY:HST/ACS MOSAIC IMAGING OF THE NGC 3115 GLOBULAR CLUSTER SYSTEM, The Astronomical Journal, vol.148, issue.2, p.32, 2014.

Z. G. Jennings, A. J. Romanowsky, J. P. Brodie, J. Janz, M. A. Norris et al., NGC 3628-UCD1: A POSSIBLE ? CEN ANALOG EMBEDDED IN A STELLAR STREAM, The Astrophysical Journal, vol.812, issue.1, p.L10, 2015.

C. I. Johnson, R. M. Rich, C. A. Pilachowski, N. Caldwell, M. Mateo et al., A SPECTROSCOPIC ANALYSIS OF THE GALACTIC GLOBULAR CLUSTER NGC 6273 (M19), The Astronomical Journal, vol.150, issue.2, p.63, 2015.

J. B. Jones, M. J. Drinkwater, R. Jurek, S. Phillipps, M. D. Gregg et al., Discovery of Ultracompact Dwarf Galaxies in the Virgo Cluster, The Astronomical Journal, vol.131, issue.1, pp.312-324, 2006.

A. Jordan, P. Cote, J. P. Blakeslee, L. Ferrarese, D. E. Mclaughlin et al., The ACS Virgo Cluster Survey. X. Half?Light Radii of Globular Clusters in Early?Type Galaxies: Environmental Dependencies and a Standard Ruler for Distance Estimation, The Astrophysical Journal, vol.634, issue.2, pp.1002-1019, 2005.
URL : https://hal.archives-ouvertes.fr/hal-02565892

A. Jordan, D. E. Mclaughlin, P. Cote, L. Ferrarese, E. W. Peng et al., The ACS Virgo Cluster Survey. XII. The Luminosity Function of Globular Clusters in Early?Type Galaxies, The Astrophysical Journal Supplement Series, vol.171, issue.1, pp.101-145, 2007.
URL : https://hal.archives-ouvertes.fr/hal-02565892

A. Jordán, E. W. Peng, and J. P. Blakeslee, ApJS, vol.180, p.54, 2009.

D. Katz, P. Sartoretti, and M. Cropper, A+A, vol.622, p.205, 2019.

Y. Ko, H. S. Hwang, and M. G. Lee, ApJ, vol.835, p.212, 2017.

A. Kundu and B. C. Whitmore, AJ, vol.121, p.2950, 2001.

A. H. Küpper, E. Balbinot, A. Bonaca, K. V. Johnston, D. W. Hogg et al., GLOBULAR CLUSTER STREAMS AS GALACTIC HIGH-PRECISION SCALES?THE POSTER CHILD PALOMAR 5, The Astrophysical Journal, vol.803, issue.2, p.80, 2015.

A. H. Küpper, P. Kroupa, H. Baumgardt, and D. C. Heggie, MNRAS, vol.401, p.105, 2010.

P. B. Kuzma, G. S. Da-costa, and A. D. Mackey, The outer envelopes of globular clusters. II. NGC 1851, NGC 5824 and NGC 1261*, Monthly Notices of the Royal Astronomical Society, vol.473, issue.3, pp.2881-2898, 2017.

P. B. Kuzma, G. S. Da-costa, A. D. Mackey, and T. A. Roderick, The outer envelopes of globular clusters ? I. NGC 7089 (M2), Monthly Notices of the Royal Astronomical Society, vol.461, issue.4, pp.3639-3652, 2016.

A. Lawrence, S. J. Warren, O. Almaini, A. C. Edge, N. C. Hambly et al., The UKIRT Infrared Deep Sky Survey (UKIDSS), Monthly Notices of the Royal Astronomical Society, vol.379, issue.4, pp.1599-1617, 2007.

B. Li, E. W. Peng, H. Zhang, J. P. Blakeslee, P. Côté et al., A GEMINI/GMOS STUDY OF INTERMEDIATE LUMINOSITY EARLY-TYPE VIRGO CLUSTER GALAXIES. I. GLOBULAR CLUSTER AND STELLAR KINEMATICS, The Astrophysical Journal, vol.806, issue.1, p.133, 2015.
URL : https://hal.archives-ouvertes.fr/hal-02469789

C. Liu, E. W. Peng, P. Côté, L. Ferrarese, A. Jordán et al., THE NEXT GENERATION VIRGO CLUSTER SURVEY. X. PROPERTIES OF ULTRA-COMPACT DWARFS IN THE M87, M49, AND M60 REGIONS, The Astrophysical Journal, vol.812, issue.1, p.34, 2015.
URL : https://hal.archives-ouvertes.fr/hal-02993459

C. Liu, E. W. Peng, E. Toloba, J. C. Mihos, L. Ferrarese et al., THE MOST MASSIVE ULTRA-COMPACT DWARF GALAXY IN THE VIRGO CLUSTER, The Astrophysical Journal, vol.812, issue.1, p.L2, 2015.

Y. Liu, E. W. Peng, S. Lim, A. Jordán, J. Blakeslee et al., THE ACS FORNAX CLUSTER SURVEY. XII. DIFFUSE STAR CLUSTERS IN EARLY-TYPE GALAXIES, The Astrophysical Journal, vol.830, issue.2, p.99, 2016.

A. Longobardi, E. W. Peng, P. Côté, J. C. Mihos, L. Ferrarese et al., The Next Generation Virgo Cluster Survey (NGVS). XXXI. The Kinematics of Intracluster Globular Clusters in the Core of the Virgo Cluster, The Astrophysical Journal, vol.864, issue.1, p.36, 2018.
URL : https://hal.archives-ouvertes.fr/hal-02294223

J. P. Madrid, ULTRA-COMPACT DWARFS IN THE FOSSIL GROUP NGC 1132, The Astrophysical Journal, vol.737, issue.1, p.L13, 2011.

J. P. Madrid, A. W. Graham, W. E. Harris, P. Goudfrooij, D. A. Forbes et al., ULTRA-COMPACT DWARFS IN THE CORE OF THE COMA CLUSTER, The Astrophysical Journal, vol.722, issue.2, pp.1707-1715, 2010.

S. R. Majewski, M. F. Skrutskie, M. D. Weinberg, and J. C. Ostheimer, A Two Micron All Sky Survey View of the Sagittarius Dwarf Galaxy. I. Morphology of the Sagittarius Core and Tidal Arms, The Astrophysical Journal, vol.599, issue.2, pp.1082-1115, 2003.

S. Mei, J. P. Blakeslee, P. Cote, J. L. Tonry, M. J. West et al., The ACS Virgo Cluster Survey. XIII. SBF Distance Catalog and the Three?dimensional Structure of the Virgo Cluster, The Astrophysical Journal, vol.655, issue.1, pp.144-162, 2007.
URL : https://hal.archives-ouvertes.fr/hal-02565892

S. Mieske, M. Hilker, and L. Infante, Fornax compact object survey FCOS: On the nature of Ultra Compact Dwarf galaxies, Astronomy & Astrophysics, vol.418, issue.2, pp.445-458, 2004.

S. Mieske, M. Hilker, L. Infante, and A. Jordán, Spectroscopic Metallicities for Fornax Ultracompact Dwarf Galaxies, Globular Clusters, and Nucleated Dwarf Elliptical Galaxies, The Astronomical Journal, vol.131, issue.5, pp.2442-2451, 2006.

S. Mieske, M. Hilker, A. Jordán, L. Infante, and M. Kissler-patig, A search for ultra-compact dwarf galaxies in the Centaurus galaxy cluster, Astronomy & Astrophysics, vol.472, issue.1, pp.111-119, 2007.

S. Mieske, M. Hilker, and I. Misgeld, The specific frequencies of ultra-compact dwarf galaxies, Astronomy & Astrophysics, vol.537, p.A3, 2011.

S. Mieske, L. Infante, M. Hilker, G. Hertling, J. P. Blakeslee et al., Discovery of two M 32 twins in Abell 1689, Astronomy & Astrophysics, vol.430, issue.2, pp.L25-L28, 2005.

S. Mieske, M. J. West, and C. M. De-oliveira, A Search for Ultra-compact Dwarf Galaxies in the NGC 1023 Group of Galaxies, Groups of Galaxies in the Nearby Universe, pp.103-107

S. Mieske, L. Infante, N. Benítez, D. Coe, J. P. Blakeslee et al., Ultracompact Dwarf Galaxies in Abell 1689: A Photometric Study with the Advanced Camera for Surveys, The Astronomical Journal, vol.128, issue.4, pp.1529-1540, 2004.

J. C. Mihos, P. R. Durrell, L. Ferrarese, J. J. Feldmeier, P. Côté et al., GALAXIES AT THE EXTREMES: ULTRA-DIFFUSE GALAXIES IN THE VIRGO CLUSTER, The Astrophysical Journal, vol.809, issue.2, p.L21, 2015.

A. P. Milone, G. Piotto, A. Renzini, A. F. Marino, L. R. Bedin et al., TheHubble Space TelescopeUV Legacy Survey of Galactic globular clusters ? IX. The Atlas of multiple stellar populations, Monthly Notices of the Royal Astronomical Society, vol.464, issue.3, pp.3636-3656, 2016.

R. P. Muñoz, T. H. Puzia, A. Lançon, E. W. Peng, P. Côté et al., THE NEXT GENERATION VIRGO CLUSTER SURVEY-INFRARED (NGVS-IR). I. A NEW NEAR-ULTRAVIOLET, OPTICAL, AND NEAR-INFRARED GLOBULAR CLUSTER SELECTION TOOL, The Astrophysical Journal Supplement Series, vol.210, issue.1, p.4, 2013.

A. L. Muratov and O. Y. Gnedin, MODELING THE METALLICITY DISTRIBUTION OF GLOBULAR CLUSTERS, The Astrophysical Journal, vol.718, issue.2, pp.1266-1288, 2010.

M. A. Norris and S. J. Kannappan, The ubiquity and dual nature of ultra-compact dwarfs, Monthly Notices of the Royal Astronomical Society, vol.414, issue.1, pp.739-758, 2011.

M. A. Norris, S. J. Kannappan, D. A. Forbes, A. J. Romanowsky, J. P. Brodie et al., The AIMSS Project ? I. Bridging the star cluster?galaxy divide???§¶, Monthly Notices of the Royal Astronomical Society, vol.443, issue.2, pp.1151-1172, 2014.

M. Odenkirchen, E. K. Grebel, C. M. Rockosi, W. Dehnen, R. Ibata et al., Detection of Massive Tidal Tails around the Globular Cluster Palomar 5 with Sloan Digital Sky Survey Commissioning Data, The Astrophysical Journal, vol.548, issue.2, pp.L165-L169, 2001.

H. S. Park, M. G. Lee, and H. S. Hwang, SUBARU SPECTROSCOPY OF THE GLOBULAR CLUSTERS IN THE VIRGO GIANT ELLIPTICAL GALAXY M86, The Astrophysical Journal, vol.757, issue.2, p.184, 2012.

S. Paudel, T. Lisker, and J. Janz, NUCLEI OF EARLY-TYPE DWARF GALAXIES: ARE THEY PROGENITORS OF ULTRACOMPACT DWARF GALAXIES?, The Astrophysical Journal, vol.724, issue.1, pp.L64-L68, 2010.

J. A. Peacock, Two-dimensional goodness-of-fit testing in astronomy, Monthly Notices of the Royal Astronomical Society, vol.202, issue.3, pp.615-627, 1983.

E. W. Peng, A. Jordan, P. Cote, J. P. Blakeslee, L. Ferrarese et al., The ACS Virgo Cluster Survey. IX. The Color Distributions of Globular Cluster Systems in Early?Type Galaxies, The Astrophysical Journal, vol.639, issue.1, pp.95-119, 2006.
URL : https://hal.archives-ouvertes.fr/hal-02565892

E. W. Peng, P. Cote, A. Jordan, J. P. Blakeslee, L. Ferrarese et al., The ACS Virgo Cluster Survey. XI. The Nature of Diffuse Star Clusters in Early?Type Galaxies, The Astrophysical Journal, vol.639, issue.2, pp.838-857, 2006.
URL : https://hal.archives-ouvertes.fr/hal-02565892

S. J. Penny, D. A. Forbes, J. Strader, C. Usher, J. P. Brodie et al., Ultracompact dwarfs in the Perseus Cluster: UCD formation via tidal stripping, Monthly Notices of the Royal Astronomical Society, vol.439, issue.4, pp.3808-3816, 2014.

J. Pfeffer and H. Baumgardt, Ultra-compact dwarf galaxy formation by tidal stripping of nucleated dwarf galaxies, Monthly Notices of the Royal Astronomical Society, vol.433, issue.3, pp.1997-2005, 2013.

J. Pfeffer, B. F. Griffen, H. Baumgardt, and M. Hilker, Contribution of stripped nuclear clusters to globular cluster and ultracompact dwarf galaxy populations, Monthly Notices of the Royal Astronomical Society, vol.444, issue.4, pp.3670-3683, 2014.

J. Pfeffer, M. Hilker, H. Baumgardt, and B. F. Griffen, Constraining ultracompact dwarf galaxy formation with galaxy clusters in the local universe, Monthly Notices of the Royal Astronomical Society, vol.458, issue.3, pp.2492-2508, 2016.

S. Phillipps, M. J. Drinkwater, M. D. Gregg, and J. B. Jones, Ultracompact Dwarf Galaxies in the Fornax Cluster, The Astrophysical Journal, vol.560, issue.1, pp.201-206, 2001.

V. Pota, D. A. Forbes, A. J. Romanowsky, J. P. Brodie, L. R. Spitler et al., The SLUGGS Survey: kinematics for over 2500 globular clusters in 12 early-type galaxies, Monthly Notices of the Royal Astronomical Society, vol.428, issue.1, pp.389-420, 2012.

V. Pota, J. P. Brodie, T. Bridges, J. Strader, A. J. Romanowsky et al., A SLUGGS and Gemini/GMOS combined study of the elliptical galaxy M60: wide-field photometry and kinematics of the globular cluster system, Monthly Notices of the Royal Astronomical Society, vol.450, issue.2, pp.1962-1983, 2015.

M. Powalka, A. Lançon, T. H. Puzia, E. W. Peng, C. Liu et al., THE NEXT GENERATION VIRGO CLUSTER SURVEY (NGVS). XXV. FIDUCIAL PANCHROMATIC COLORS OF VIRGO CORE GLOBULAR CLUSTERS AND THEIR COMPARISON TO MODEL PREDICTIONS, The Astrophysical Journal Supplement Series, vol.227, issue.1, p.12, 2016.
URL : https://hal.archives-ouvertes.fr/hal-02294223

M. Powalka, T. H. Puzia, A. Lançon, E. W. Peng, F. Schönebeck et al., NEW CONSTRAINTS ON A COMPLEX RELATION BETWEEN GLOBULAR CLUSTER COLORS AND ENVIRONMENT, The Astrophysical Journal, vol.829, issue.1, p.L5, 2016.

M. Riello, F. De-angeli, D. W. Evans, G. Busso, N. C. Hambly et al., Gaia Data Release 2, Astronomy & Astrophysics, vol.616, p.A3, 2018.
URL : https://hal.archives-ouvertes.fr/hal-01867238

J. C. Roediger, L. Ferrarese, P. Côté, L. A. Macarthur, R. Sánchez-janssen et al., The Next Generation Virgo Cluster Survey (NGVS). XXIV. The Red Sequence to ?106L?and Comparisons with Galaxy Formation Models, The Astrophysical Journal, vol.836, issue.1, p.120, 2017.
URL : https://hal.archives-ouvertes.fr/hal-02294223

R. Sánchez-janssen, L. Ferrarese, L. A. Macarthur, P. Côté, J. P. Blakeslee et al., THE NEXT GENERATION VIRGO CLUSTER SURVEY. VII. THE INTRINSIC SHAPES OF LOW-LUMINOSITY GALAXIES IN THE CORE OF THE VIRGO CLUSTER, AND A COMPARISON WITH THE LOCAL GROUP, The Astrophysical Journal, vol.820, issue.1, p.69, 2016.

R. Sánchez-janssen, P. Côté, L. Ferrarese, E. W. Peng, J. Roediger et al., The Next Generation Virgo Cluster Survey. XXIII. Fundamentals of Nuclear Star Clusters over Seven Decades in Galaxy Mass, The Astrophysical Journal, vol.878, issue.1, p.18, 2019.

M. A. Sandoval, R. P. Vo, A. J. Romanowsky, J. Strader, J. Choi et al., HIDING IN PLAIN SIGHT: RECORD-BREAKING COMPACT STELLAR SYSTEMS IN THE SLOAN DIGITAL SKY SURVEY, The Astrophysical Journal, vol.808, issue.1, p.L32, 2015.

D. J. Schlegel, D. P. Finkbeiner, and M. Davis, Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds, The Astrophysical Journal, vol.500, issue.2, pp.525-553, 1998.

F. Schweizer, P. Seitzer, B. C. Whitmore, D. D. Kelson, and E. V. Villanueva, The Second Nucleus of NGC 7727: Direct Evidence for the Formation and Evolution of an Ultracompact Dwarf Galaxy, The Astrophysical Journal, vol.853, issue.1, p.54, 2018.

A. C. Seth, R. Van-den-bosch, S. Mieske, H. Baumgardt, M. D. Brok et al., A supermassive black hole in an ultra-compact dwarf galaxy, Nature, vol.513, issue.7518, pp.398-400, 2014.

C. Spengler, P. Côté, J. Roediger, L. Ferrarese, R. Sánchez-janssen et al., Virgo Redux: The Masses and Stellar Content of Nuclei in Early-type Galaxies from Multiband Photometry and Spectroscopy, The Astrophysical Journal, vol.849, issue.1, p.55, 2017.
URL : https://hal.archives-ouvertes.fr/hal-02190144

J. Strader, A. J. Romanowsky, J. P. Brodie, L. R. Spitler, M. A. Beasley et al., WIDE-FIELD PRECISION KINEMATICS OF THE M87 GLOBULAR CLUSTER SYSTEM, The Astrophysical Journal Supplement Series, vol.197, issue.2, p.33, 2011.

J. Strader, G. Fabbiano, B. Luo, D. Kim, J. P. Brodie et al., DEEPCHANDRAMONITORING OBSERVATIONS OF NGC 4649. II. WIDE-FIELDHUBBLE SPACE TELESCOPEIMAGING OF THE GLOBULAR CLUSTERS, The Astrophysical Journal, vol.760, issue.1, p.87, 2012.

J. Strader, A. C. Seth, D. A. Forbes, G. Fabbiano, A. J. Romanowsky et al., THE DENSEST GALAXY, The Astrophysical Journal, vol.775, issue.1, p.L6, 2013.

E. Toloba, B. Li, P. Guhathakurta, E. W. Peng, L. Ferrarese et al., THE NEXT GENERATION VIRGO CLUSTER SURVEY XVI: THE ANGULAR MOMENTUM OF DWARF EARLY-TYPE GALAXIES FROM GLOBULAR CLUSTER SATELLITES, The Astrophysical Journal, vol.822, issue.1, p.51, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01433399

E. Toloba, S. Lim, and E. Peng, MNRAS, vol.856, p.594, 1991.

D. Villegas, A. Jordán, E. W. Peng, J. P. Blakeslee, P. Côté et al., THE ACS FORNAX CLUSTER SURVEY. VIII. THE LUMINOSITY FUNCTION OF GLOBULAR CLUSTERS IN VIRGO AND FORNAX EARLY-TYPE GALAXIES AND ITS USE AS A DISTANCE INDICATOR, The Astrophysical Journal, vol.717, issue.2, pp.603-616, 2010.

K. Voggel, M. Hilker, and T. Richtler, Globular cluster clustering and tidal features around ultra-compact dwarf galaxies in the halo of NGC 1399, Astronomy & Astrophysics, vol.586, p.A102, 2016.

K. T. Voggel, A. C. Seth, and D. J. Sand, arXiv moves, Materials Today, vol.4, issue.5, p.20, 2001.

E. M. Wehner and W. E. Harris, Ultracompact Dwarf Candidates in the Hydra Cluster, The Astrophysical Journal, vol.668, issue.1, pp.L35-L38, 2007.

M. Wenger, F. Ochsenbein, D. Egret, P. Dubois, F. Bonnarel et al., The SIMBAD astronomical database, Astronomy and Astrophysics Supplement Series, vol.143, issue.1, pp.9-22, 2000.
URL : https://hal.archives-ouvertes.fr/insu-02889432

B. Willman and J. Strader, ?GALAXY,? DEFINED, The Astronomical Journal, vol.144, issue.3, p.76, 2012.

H. Zhang, E. W. Peng, P. Côté, C. Liu, L. Ferrarese et al., THE NEXT GENERATION VIRGO CLUSTER SURVEY. VI. THE KINEMATICS OF ULTRA-COMPACT DWARFS AND GLOBULAR CLUSTERS IN M87, The Astrophysical Journal, vol.802, issue.1, p.30, 2015.
URL : https://hal.archives-ouvertes.fr/hal-02993459

H. Zhang, T. H. Puzia, E. W. Peng, C. Liu, P. Côté et al., Stellar Population Properties of Ultracompact Dwarfs in M87: A Mass?Metallicity Correlation Connecting Low-metallicity Globular Clusters and Compact Ellipticals, The Astrophysical Journal, vol.858, issue.1, p.37, 2018.
URL : https://hal.archives-ouvertes.fr/hal-01763482