Results 1 to 10 of about 111,584 (183)

The fragmentation properties of massive star-forming regions in 30Dor-10 at 2000 au resolution [PDF]

Nature Communications
The fragmentation properties of parsec- scale clumps play a fundamental role in shaping the dense gas condensations known as cores, the immediate progenitor of stars.
Alessio Traficante, María J. Jiménez-Donaire, Remy Indebetouw, Tony Wong, Alice Nucara, Ralf S. Klessen, Patrick Hennebelle, Ugo Lebreuilly, Chiara Mininni, Sergio Molinari, Elena Sabbi, Juan D. Soler   +11 more
doaj   +2 more sources

Probing the Milky Way Stellar and Brown Dwarf Initial Mass Function with Modern Microlensing Observations

The Astrophysical Journal Letters, 2023
We use recent microlensing observations toward the central bulge of the Galaxy to probe the overall stellar plus brown dwarf initial mass function (IMF) in these regions well within the brown dwarf domain. We find that the IMF is consistent with the same
Gilles Chabrier, Romain Lenoble
doaj   +1 more source

Galaxy And Mass Assembly (GAMA) : stellar mass functions by Hubble type [PDF]

, 2014
This work was supported by the Austrian Science Foundation FWF under grant P23946. AWG was supported under the Australian Research Council's funding scheme FT110100263.We present an estimate of the galaxy stellar mass function and its division by ...
Alpaslan, Mehmet, Baldry, Ivan, Bamford, Steven P., Bauer, Amanda E., Bland-Hawthorn, Joss, Brown, Michael J. I., Colless, Matthew, Conselice, Christopher J., Driver, Simon P., Graham, Alister W., Holwerda, Benne W., Hopkins, Andrew M., Kelvin, Lee S., Lara-Lopez, Maritza A., Liske, Jochen, Lopez-Sanchez, Angel R., Loveday, Jon, Norberg, Peder, Phillipps, Steven, Popescu, Cristina C., Prescott, Matthew, Robotham, Aaron S. G., Sansom, Anne E., Taylor, Edward N., Tuffs, Richard J.   +24 more
core   +12 more sources

Mass–Metallicity Relationship of SDSS Star-forming Galaxies: Population Synthesis Analysis and Effects of Star Burst Length, Extinction Law, Initial Mass Function, and Star Formation Rate

The Astrophysical Journal, 2023
We investigate the mass–metallicity relationship of star-forming galaxies by analyzing the absorption line spectra of ∼200,000 galaxies in the Sloan Digital Sky Survey.
Eva Sextl, Rolf-Peter Kudritzki, H. Jabran Zahid, I-Ting Ho   +3 more
doaj   +1 more source

The Stellar Mass Components of Galaxies: Comparing Semi-Analytical Models with Observation [PDF]

, 2010
We compare the stellar masses of central and satellite galaxies predicted by three independent semianalytical models with observational results obtained from a large galaxy group catalogue constructed from the Sloan Digital Sky Survey.
Adelman-McCarthy, Bell, Bell, Benson, Blanton, Blanton, Cole, Conroy, Cox, Ferguson, Frank C. van den Bosch, Gnedin, Gonzalez, Gonzalez, H. J. Mo, Henriques, Henriques, Jing, Jing, Kang, Kang, Kauffmann, Lei Liu, Lin, Navarro, Neistein, Pasquali, Puchwein, Spergel, Tinker, Tinker, van den Bosch, Volker Springel, Xiaohu Yang, Yang, Yang, Yang, Yang, Yanny, Zehavi, Zehavi, Zehavi, Zheng, Zheng   +43 more
core   +1 more source

Photometric Objects Around Cosmic Webs (PAC) Delineated in a Spectroscopic Survey. IV. High-precision Constraints on the Evolution of the Stellar–Halo Mass Relation at Redshift z < 0.7

The Astrophysical Journal, 2023
Taking advantage of the Photometric objects Around Cosmic webs method developed in Paper I, we measure the excess surface density ${\bar{n}}_{2}{w}_{{\rm{p}}}$ of the photometric objects around spectroscopic objects down to stellar masses 10 ^8.0 M _ ...
Kun Xu, Y. P. Jing, Yun Zheng, Hongyu Gao   +3 more
doaj   +1 more source

The mass evolution of the first galaxies: stellar mass functions and star formation rates at $4 < z < 7$ in the CANDELS GOODS-South field [PDF]

, 2014
We measure new estimates for the galaxy stellar mass function and star formation rates for samples of galaxies at $z \sim 4,~5,~6~\&~7$ using data in the CANDELS GOODS South field.
Ashby, Matthew L. N., Conselice, Christopher J., Davé, Romeel, Dekel, Avishai, Dickinson, Mark, Duncan, Kenneth, Faber, Sandra M., Ferguson, Henry C., Giavalisco, Mauro, Grogin, Norman A., Guo, Yicheng, Hartley, William G., Kocevski, Dale, Koekemoer, Anton M., Lu, Yu, Mortlock, Alice, Ownsworth, Jamie, Somerville, Rachel S., White, Catherine E.   +18 more
core   +3 more sources

Can Cuspy Dark-matter-dominated Halos Hold Cored Stellar Mass Distributions?

The Astrophysical Journal, 2023
According to the current concordance cosmological model, dark matter (DM) particles are collisionless and produce self-gravitating structures with a central cusp, which, generally, is not observed. The observed density tends to a central plateau or core,
Jorge Sánchez Almeida, Angel R. Plastino, Ignacio Trujillo   +2 more
doaj   +1 more source

Evolution of Mass Functions of Coeval Stars through Wind Mass Loss and Binary Interactions [PDF]

, 2015
Accurate determinations of stellar mass functions and ages of stellar populations are crucial to much of astrophysics. We analyse the evolution of stellar mass functions of coeval main sequence stars including all relevant aspects of single- and binary ...
de Mink, S. E., Izzard, R. G., Langer, N., Schneider, F. R. N.   +3 more
core   +2 more sources

Constraining the Stellar Mass Function in the Galactic Center via Mass Loss from Stellar Collisions

Advances in Astronomy, 2011
The dense concentration of stars and high-velocity dispersions in the Galactic center imply that stellar collisions frequently occur. Stellar collisions could therefore result in significant mass loss rates.
Douglas Rubin, Abraham Loeb
doaj   +1 more source