Results 31 to 40 of about 346,903 (248)

Studying stellar halos with future facilities [PDF]

, 2016
Stellar halos around galaxies retain fundamental evidence of the processes which lead to their build up. Sophisticated models of galaxy formation in a cosmological context yield quantitative predictions about various observable characteristics, including
GREGGIO, Laura, USLENGHI, MICHELA, FALOMO, Renato   +2 more
core   +1 more source

Elliptical galaxies/stellar halos connection [PDF]

Proceedings of the International Astronomical Union, 2019
AbstractCosmological simulations predict that early-type galaxies (ETGs) are the results of extended mass accretion histories. The latter are characterized by different numbers of mergers, mergers’ mass ratios and gas fractions, and timing. Depending on the sequence and nature of these mergers that follow the first phase of the in-situ star formation ...
Arnaboldi, Magda, Pulsoni, Claudia, Gerhard, Ortwin, team, ePN. S   +3 more
openaire   +2 more sources

Stellar Halos from the The Dragonfly Edge-on Galaxies Survey

The Astrophysical Journal, 2022
Abstract We present the primary results from the Dragonfly Edge-on Galaxies Survey, an exploration of the stellar halos of twelve nearby (d < 25 Mpc) edge-on disk galaxies with the Dragonfly Telephoto Array. The edge-on orientation of these galaxies allows their stellar halos to be explored with minimal obscuration by or confusion ...
Colleen Gilhuly, Allison Merritt, Roberto Abraham, Shany Danieli, Deborah Lokhorst, Qing Liu, Pieter van Dokkum, Charlie Conroy, Johnny Greco   +8 more
openaire   +2 more sources

Kinematics and simulations of the stellar stream in the halo of the Umbrella Galaxy [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
23 pages, 10 figures, 7 tables, accepted for publication in MNRAS 3D animated gif N-body model: http://sages.ucolick.org/downloads/Umbrella_3d ...
Foster, C., Lux, H., Romanowsky, A. J., Martinez-Delgado, D., Zibetti, S., Arnold, J. A., Brodie, J. P., Ciardullo, R., GaBany, R. J., Merrifield, M. R., Singh, N., Strader, J.   +11 more
openaire   +3 more sources

From Halos to Galaxies. VII. The Connections between Stellar Mass Growth History, Quenching History, and Halo Assembly History for Central Galaxies

The Astrophysical Journal, 2023
The assembly of galaxies over cosmic time is tightly connected to the assembly of their host dark matter halos. We investigate the stellar mass growth history and the chemical enrichment history of central galaxies in the Sloan Digital Sky Survey Mapping
Cheqiu Lyu, Yingjie Peng, Yipeng Jing, Xiaohu Yang, Luis C. Ho, Alvio Renzini, Bitao Wang, Kai Wang, Bingxiao Xu, Dingyi Zhao, Jing Dou, Qiusheng Gu, Roberto Maiolino, Filippo Mannucci, Feng Yuan   +14 more
doaj   +1 more source

The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT The stellar halo of the Milky Way records the history of its interactions with dwarf galaxies, whose subsequent destruction results in the formation of an extended stellar component. Recent works have suggested that galaxies with masses comparable to the Large Magellanic Cloud (LMC, $M_\star \sim 10^9$ M☉) may be the primary ...
Sownak Bose, Alis J Deason
openaire   +3 more sources

Galaxy And Mass Assembly (GAMA) : galaxy close pairs, mergers and the future fate of stellar mass [PDF]

, 2014
ASGR acknowledges STFC and SUPA funding that were used to do this work. GAMA is funded by the STFC (UK), the ARC (Australia), the AAO and the participating institutions.We use a highly complete subset of the Galaxy And Mass Assembly II (GAMA-II) redshift
De Propris, R., De Propis, R., T McNaught-Roberts (16161611), Pimbblet, K. A., A Moffett (7731959), Driver, S. P., M S Owers (16161563), Lara-Lopez, M. A., A M Hopkins (16143587), Lopez-Sanchez, Angel R., B W Holwerda (16219943), Jonathan Loveday (4460899), Owers, M. S., R De Propris (16161587), Obreschkow, D., Holwerda, Benne W., M Cluver (16191152), Baldry, I. K., J Bland-Hawthorn (16111139), Davies, L. J. M., Bauer, A. E., E N Taylor (16143620), Brown, M. J. I., A S G Robotham (16143614), M A Lara-Lopez (16161575), A E Bauer (16161566), Hopkins, A. M., E van Kampen (16112642), Brough, S., Loveday, J., McNaught-Roberts, T., I K Baldry (16072595), Moffett, A., Liske, J., Wilkins, S. M., P Norberg (16143575), Holwerda, B. W., Mahajan, S., L S Kelvin (16143602), K Pimbblet (16191149), Penny, S. J., Robotham, A. S. G., van Kampen, E., M Prescott (10000280), M J Drinkwater (16091732), Bland-Hawthorn, J., N K Agius (16219940), Agius, N. K., Prescott, M., M J I Brown (16143632), Cluver, M., Drinkwater, M. J., S J Penny (16219955), Taylor, E. N., Stephen Wilkins (4461910), Lopez-Sanchez, A. R., D Obreschkow (16219952), S Brough (16143590), S Mahajan (16219949), L J M Davies (16219937), Norberg, P., J Liske (7814738), Kelvin, L. S., Pimbblet, K., S P Driver (16143581), A R López-Sánchez (16219946), Loveday, J, Hopkins AM, Moffett A, Kelvin LS, Agius, NK, Mahajan S, Brough, S, Robotham, ASG, Drinkwater, MJ, Moffett, A, Baldry, IK, McNaught-Roberts T, Hopkins, AM, De Propris, R, Pimbblet, K, van Kampen E, Driver, SP, Driver SP, Pimbblet K, van Kampen, E, Brown, MJI, De Propris R, Bland-Hawthorn, J, Davies LJM, Lopez-Sanchez AR, Wilkins SM, Lara-Lopez, MA, Penny SJ, Lopez-Sanchez, AR, Loveday J, Liske J, Lara-Lopez MA, Liske, J, Taylor EN, Davies, LJM, Norberg, P, Obreschkow D, Prescott M, Cluver, M, Brown MJI, Brough S, Robotham, A. S.G., Taylor, EN, Bland-Hawthorn J, Robotham ASG, Prescott, M, Davies, L. J.M., Drinkwater MJ, Obreschkow, D, Wilkins, SM, Kelvin, LS, Penny, SJ, Holwerda BW, Norberg P, Agius NK, Baldry IK, Bauer, AE, Cluver M, Brown, M. J.I., McNaught-Roberts, T, Owers, MS, Mahajan, S, Bauer AE, Holwerda, BW, Owers MS   +130 more
core   +1 more source

Stellar halo constraints on simulated late-type galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2004
How do late-type spiral galaxies form within the context of a cold dark matter cosmology? We contrast N-body, smoothed particle hydrodynamical simulations of galaxy formation that employ two different supernova feedback mechanisms. Observed mass and metallicity distributions of the stellar haloes of the Milky Way and M31 provide constraints on these ...
Brook, Chris B., Kawata, Daisuke, Gibson, Brad K., Flynn, Chris   +3 more
openaire   +3 more sources

The Outer Halos of Very Massive Galaxies: BCGs and their DSC in the Magneticum Simulations

Galaxies, 2017
Recent hydrodynamic cosmological simulations cover volumes up to Gpc 3 and resolve halos across a wide range of masses and environments, from massive galaxy clusters down to normal galaxies, while following a large variety of physical processes ...
Rhea-Silvia Remus, Klaus Dolag, Tadziu L. Hoffmann   +2 more
doaj   +1 more source

Tracing Galaxy Formation with Stellar Halos. I. Methods [PDF]

The Astrophysical Journal, 2005
22 pages, 16 figures, submitted to ...
Bullock, James S., Johnston, Kathryn V.
openaire   +2 more sources