The properties of bright globular clusters, ultra-compact dwarfs and dwarf nuclei in the Virgo core: hints on origin of ultra-compact dwarf galaxies (UCDs)

Chengze Liu; Eric W. Peng; Patrick Côté; Hong Xin Zhang; Laura Ferrarese; Andrés Jordán; J. Christopher Mihos; Roberto P. Muñoz; Thomas H. Puzia; Ariane Lançon; Stephen Gwyn; Jean Charles Cuillandre; John P. Blakeslee; Alessandro Boselli; Patrick R. Durrell; Pierre Alain Duc; Puragra Guhathakurta; Lauren A. MacArthur; Simona Mei; Rubén Sánchez-Janssen; Haiguang Xu

doi:10.1017/S1743921318006701

The properties of bright globular clusters, ultra-compact dwarfs and dwarf nuclei in the Virgo core: hints on origin of ultra-compact dwarf galaxies (UCDs)

Chengze Liu
, Eric W. Peng
, Patrick Côté
, Hong Xin Zhang
, Laura Ferrarese
, Andrés Jordán
, J. Christopher Mihos
, Roberto P. Muñoz
, Thomas H. Puzia
, Ariane Lançon
, Stephen Gwyn
, Jean Charles Cuillandre
, John P. Blakeslee
, Alessandro Boselli
, Patrick R. Durrell
, Pierre Alain Duc
, Puragra Guhathakurta
, Lauren A. MacArthur
, Simona Mei
, Rubén Sánchez-Janssen

Haiguang Xu

Astrophysical Sciences

Research output: Contribution to journal › Conference article › peer-review

Abstract

Based on the data from the Next Generation Virgo cluster Survey (NGVS), we statistically study the photometric properties of globular clusters (GCs), ultra-compact dwarfs (UCDs) and dwarf nuclei in the Virgo core (M87) region. We found an obvious negative color (g − z) gradient in GC system associate with M87, i.e. GCs in the outer regions are bluer. However, such color gradient does not exist in UCD system, neither in dwarf nuclei systemaround M87. In addition, we found that many UCDs are surrounded by extended, low surface brightness envelopes. The dwarf nuclei and UCDs show different spatial distributions from GCs, with dwarf nuclei and UCDs (especially for the UCDs with visible envelopes) lying at larger distances to the Virgo center. These results support the view that UCDs (at least for a fraction of UCDs) are more tied to dwarf nuclei than to GCs.

Original language	English (US)
Pages (from-to)	384-388
Number of pages	5
Journal	Proceedings of the International Astronomical Union
Volume	14
Issue number	S344
DOIs	https://doi.org/10.1017/S1743921318006701
State	Published - 2019
Event	344th Symposium of the International Astronomical Union on Dwarf Galaxies: From the Deep Universe to the Present - Vienna, Austria Duration: Aug 20 2018 → Aug 24 2018

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

galaxies: dwarf
galaxies: nuclei
galaxies: star clusters: general
globular clusters: general

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10.1017/S1743921318006701

Cite this

Liu, C., Peng, E. W., Côté, P., Zhang, H. X., Ferrarese, L., Jordán, A., Mihos, J. C., Muñoz, R. P., Puzia, T. H., Lançon, A., Gwyn, S., Cuillandre, J. C., Blakeslee, J. P., Boselli, A., Durrell, P. R., Duc, P. A., Guhathakurta, P., MacArthur, L. A., Mei, S., ... Xu, H. (2019). The properties of bright globular clusters, ultra-compact dwarfs and dwarf nuclei in the Virgo core: hints on origin of ultra-compact dwarf galaxies (UCDs). Proceedings of the International Astronomical Union, 14(S344), 384-388. https://doi.org/10.1017/S1743921318006701

@article{3261caeebdd241b5ab81bc83bc155a44,

title = "The properties of bright globular clusters, ultra-compact dwarfs and dwarf nuclei in the Virgo core: hints on origin of ultra-compact dwarf galaxies (UCDs)",

abstract = "Based on the data from the Next Generation Virgo cluster Survey (NGVS), we statistically study the photometric properties of globular clusters (GCs), ultra-compact dwarfs (UCDs) and dwarf nuclei in the Virgo core (M87) region. We found an obvious negative color (g − z) gradient in GC system associate with M87, i.e. GCs in the outer regions are bluer. However, such color gradient does not exist in UCD system, neither in dwarf nuclei systemaround M87. In addition, we found that many UCDs are surrounded by extended, low surface brightness envelopes. The dwarf nuclei and UCDs show different spatial distributions from GCs, with dwarf nuclei and UCDs (especially for the UCDs with visible envelopes) lying at larger distances to the Virgo center. These results support the view that UCDs (at least for a fraction of UCDs) are more tied to dwarf nuclei than to GCs.",

keywords = "galaxies: dwarf, galaxies: nuclei, galaxies: star clusters: general, globular clusters: general",

author = "Chengze Liu and Peng, \{Eric W.\} and Patrick C{\^o}t{\'e} and Zhang, \{Hong Xin\} and Laura Ferrarese and Andr{\'e}s Jord{\'a}n and Mihos, \{J. Christopher\} and Mu{\~n}oz, \{Roberto P.\} and Puzia, \{Thomas H.\} and Ariane Lan{\c c}on and Stephen Gwyn and Cuillandre, \{Jean Charles\} and Blakeslee, \{John P.\} and Alessandro Boselli and Durrell, \{Patrick R.\} and Duc, \{Pierre Alain\} and Puragra Guhathakurta and MacArthur, \{Lauren A.\} and Simona Mei and Rub{\'e}n S{\'a}nchez-Janssen and Haiguang Xu",

note = "Publisher Copyright: {\textcopyright} International Astronomical Union 2019.; 344th Symposium of the International Astronomical Union on Dwarf Galaxies: From the Deep Universe to the Present ; Conference date: 20-08-2018 Through 24-08-2018",

year = "2019",

doi = "10.1017/S1743921318006701",

language = "English (US)",

volume = "14",

pages = "384--388",

journal = "Proceedings of the International Astronomical Union",

issn = "1743-9213",

publisher = "Cambridge University Press",

number = "S344",

}

Liu, C, Peng, EW, Côté, P, Zhang, HX, Ferrarese, L, Jordán, A, Mihos, JC, Muñoz, RP, Puzia, TH, Lançon, A, Gwyn, S, Cuillandre, JC, Blakeslee, JP, Boselli, A, Durrell, PR, Duc, PA, Guhathakurta, P, MacArthur, LA, Mei, S, Sánchez-Janssen, R & Xu, H 2019, 'The properties of bright globular clusters, ultra-compact dwarfs and dwarf nuclei in the Virgo core: hints on origin of ultra-compact dwarf galaxies (UCDs)', Proceedings of the International Astronomical Union, vol. 14, no. S344, pp. 384-388. https://doi.org/10.1017/S1743921318006701

The properties of bright globular clusters, ultra-compact dwarfs and dwarf nuclei in the Virgo core: hints on origin of ultra-compact dwarf galaxies (UCDs). / Liu, Chengze; Peng, Eric W.; Côté, Patrick et al.
In: Proceedings of the International Astronomical Union, Vol. 14, No. S344, 2019, p. 384-388.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - The properties of bright globular clusters, ultra-compact dwarfs and dwarf nuclei in the Virgo core

T2 - 344th Symposium of the International Astronomical Union on Dwarf Galaxies: From the Deep Universe to the Present

AU - Liu, Chengze

AU - Peng, Eric W.

AU - Côté, Patrick

AU - Zhang, Hong Xin

AU - Ferrarese, Laura

AU - Jordán, Andrés

AU - Mihos, J. Christopher

AU - Muñoz, Roberto P.

AU - Puzia, Thomas H.

AU - Lançon, Ariane

AU - Gwyn, Stephen

AU - Cuillandre, Jean Charles

AU - Blakeslee, John P.

AU - Boselli, Alessandro

AU - Durrell, Patrick R.

AU - Duc, Pierre Alain

AU - Guhathakurta, Puragra

AU - MacArthur, Lauren A.

AU - Mei, Simona

AU - Sánchez-Janssen, Rubén

AU - Xu, Haiguang

PY - 2019

Y1 - 2019

N2 - Based on the data from the Next Generation Virgo cluster Survey (NGVS), we statistically study the photometric properties of globular clusters (GCs), ultra-compact dwarfs (UCDs) and dwarf nuclei in the Virgo core (M87) region. We found an obvious negative color (g − z) gradient in GC system associate with M87, i.e. GCs in the outer regions are bluer. However, such color gradient does not exist in UCD system, neither in dwarf nuclei systemaround M87. In addition, we found that many UCDs are surrounded by extended, low surface brightness envelopes. The dwarf nuclei and UCDs show different spatial distributions from GCs, with dwarf nuclei and UCDs (especially for the UCDs with visible envelopes) lying at larger distances to the Virgo center. These results support the view that UCDs (at least for a fraction of UCDs) are more tied to dwarf nuclei than to GCs.

AB - Based on the data from the Next Generation Virgo cluster Survey (NGVS), we statistically study the photometric properties of globular clusters (GCs), ultra-compact dwarfs (UCDs) and dwarf nuclei in the Virgo core (M87) region. We found an obvious negative color (g − z) gradient in GC system associate with M87, i.e. GCs in the outer regions are bluer. However, such color gradient does not exist in UCD system, neither in dwarf nuclei systemaround M87. In addition, we found that many UCDs are surrounded by extended, low surface brightness envelopes. The dwarf nuclei and UCDs show different spatial distributions from GCs, with dwarf nuclei and UCDs (especially for the UCDs with visible envelopes) lying at larger distances to the Virgo center. These results support the view that UCDs (at least for a fraction of UCDs) are more tied to dwarf nuclei than to GCs.

KW - galaxies: dwarf

KW - galaxies: nuclei

KW - galaxies: star clusters: general

KW - globular clusters: general

UR - https://www.scopus.com/pages/publications/105008506419

UR - https://www.scopus.com/pages/publications/105008506419#tab=citedBy

U2 - 10.1017/S1743921318006701

DO - 10.1017/S1743921318006701

M3 - Conference article

AN - SCOPUS:105008506419

SN - 1743-9213

VL - 14

SP - 384

EP - 388

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - S344

Y2 - 20 August 2018 through 24 August 2018

ER -

The properties of bright globular clusters, ultra-compact dwarfs and dwarf nuclei in the Virgo core: hints on origin of ultra-compact dwarf galaxies (UCDs)

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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