Transforming gas-rich low-mass disky galaxies into ultra-diffuse galaxies by ram pressure

被引:24
|
作者
Grishin, Kirill A. [1 ,2 ]
Chilingarian, Igor V. [1 ,3 ]
Afanasiev, Anton V. [1 ,4 ,5 ]
Fabricant, Daniel [3 ]
Katkov, Ivan Yu. [1 ,6 ]
Moran, Sean [3 ]
Yagi, Masafumi [7 ]
机构
[1] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow, Russia
[2] Moscow MV Lomonosov State Univ, Dept Phys, Moscow, Russia
[3] Ctr Astrophys Harvard & Smithsonian, Cambridge, MA USA
[4] Univ Paris, CNRS, Astroparticule & Cosmol, Paris, France
[5] PSL Res Univ, Observ Paris, CNRS, LERMA, Paris, France
[6] New York Univ Abu Dhabi, Abu Dhabi, U Arab Emirates
[7] Natl Astron Observ Japan, Subaru Telescope, Mitaka, Tokyo, Japan
基金
俄罗斯科学基金会;
关键词
STAR-FORMATION; DARK-MATTER; COMA CLUSTER; STELLAR POPULATIONS; VIRGO CLUSTER; EVOLUTION; II; KINEMATICS; DISTANCE; CATALOG;
D O I
10.1038/s41550-021-01470-5
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Up to 40% of ultra-diffuse galaxies could have formed via stripping of material by ram pressure. A study on 11 low-mass post-starburst galaxies in the Coma and Abell 2147 clusters shows ubiquitous marks of ram-pressure stripping and recent star formation, and most of them will evolve into ultra-diffuse galaxies in the next 10 Gyr. Faint extended elliptically shaped ultra-diffuse galaxies and slightly brighter and more compact dwarf elliptical and lenticular stellar systems are common in galaxy clusters. Their poorly constrained evolutionary paths can be studied by identifying young ultra-diffuse galaxy and dwarf elliptical analogues populated with bright, massive stars. Using data mining we identified 11 such low-mass (2 x 10(8) M-circle dot < M-star < 2 x 10(9) M-circle dot) galaxies with large half-light radii (2.0 kpc < r(e) < 5 kpc) and recently quenched star formation in the Coma and Abell 2147 galaxy clusters. All galaxies happen to have ram-pressure-stripped tails with signs of current or recent star formation. Deep spectroscopic observations revealed rotating stellar disks containing 70-95% dark matter by mass. A large fraction of the disk stars (10-60%) formed in intense star bursts 180-970 Myr ago, probably triggered by ram pressure. Observed global gradients of stellar age corroborate this scenario. Passive evolution in the next 10 Gyr will transform 9 of the 11 galaxies into ultra-diffuse galaxies. If we assume a constant rate of galaxy infall, 44 +/- 16% of the most luminous present-day ultra-diffuse galaxies in Coma must have formed via ram-pressure stripping of disky progenitors.
引用
收藏
页码:1308 / +
页数:17
相关论文
共 50 条
  • [31] On the Origin of Star-Gas Counterrotation in Low-mass Galaxies
    Starkenburg, Tjitske K.
    Sales, Laura. V.
    Genel, Shy
    Manzano-King, Christina
    Canalizo, Gabriela
    Hernquist, Lars
    ASTROPHYSICAL JOURNAL, 2019, 878 (02):
  • [32] TRACING COLD HI GAS IN NEARBY, LOW-MASS GALAXIES
    Warren, Steven R.
    Skillman, Evan D.
    Stilp, Adrienne M.
    Dalcanton, Julianne J.
    Ott, Juergen
    Walter, Fabian
    Petersen, Eric A.
    Koribalski, Baerbel
    West, Andrew A.
    ASTROPHYSICAL JOURNAL, 2012, 757 (01):
  • [33] Element enrichment and stellar populations of gas-rich low surface brightness dwarf galaxies
    vanZee, L
    Haynes, MP
    Salzer, JJ
    ASTRONOMICAL JOURNAL, 1997, 114 (06): : 2497 - 2504
  • [34] Dynamical Friction in Globular Cluster-rich Ultra-diffuse Galaxies: The Case of NGC5846-UDG1
    Bar, Nitsan
    Danieli, Shany
    Blum, Kfir
    ASTROPHYSICAL JOURNAL LETTERS, 2022, 932 (01)
  • [35] The low-mass end of the neutral gas mass and velocity width functions of galaxies in A CDM
    Yaryura, C. Y.
    Helmi, A.
    Abadi, M. G.
    Starkenburg, E.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 457 (03) : 2415 - 2422
  • [36] A comparative study of star formation thresholds in gas-rich low surface brightness dwarf galaxies
    vanZee, L
    Haynes, MP
    Salzer, JJ
    Broeils, AH
    ASTRONOMICAL JOURNAL, 1997, 113 (05): : 1618 - 1637
  • [37] LOW-MASS SPIRAL GALAXIES WITH LITTLE MOLECULAR GAS AND PRODIGIOUS STAR FORMATION
    KENNEY, JD
    YOUNG, JS
    ASTROPHYSICAL JOURNAL, 1988, 326 (02): : 588 - 595
  • [38] Ultra-diffuse Galaxies as Extreme Star-forming Environments. II. Star Formation and Pressure Balance in H i-rich UDGs
    Kado-Fong, Erin
    Kim, Chang-Goo
    Greene, Jenny E. E.
    Lancaster, Lachlan
    ASTROPHYSICAL JOURNAL, 2022, 939 (02):
  • [39] Observational properties of ultra-diffuse galaxies in low-density environments: field UDGs are predominantly blue and star forming
    Prole, D. J.
    van der Burg, R. F. J.
    Hilker, M.
    Davies, J. I.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 488 (02) : 2143 - 2157
  • [40] The multifarious ionization sources and disturbed kinematics of extraplanar gas in five low-mass galaxies
    Rautio, R. P., V
    Watkins, A. E.
    Comeron, S.
    Salo, H.
    Diaz-Garcia, S.
    Janz, J.
    ASTRONOMY & ASTROPHYSICS, 2022, 659