Results 161 to 170 of about 35,030 (307)

Why Are There Dwarf Spheroidal Galaxies?

The Astrophysical Journal, 2001
4 ApJ pages, submitted to ApJ ...
openaire   +2 more sources

Ultradiffuse Galaxies—A Distinct Population? Dwarf Galaxies in the Coma Cluster and A262 from Deep u′–g′–r′ Wendelstein Imaging Data

The Astrophysical Journal Supplement Series
In this study, we compare the structural parameters of ultradiffuse galaxies (UDGs) to those of other dwarf galaxies and investigate whether UDGs form a distinct population.
Raphael Zöller, Matthias Kluge, Benjamin Staiger, Ralf Bender   +3 more
doaj   +1 more source

Metallicity gradients in the Sagittarius dwarf spheroidal galaxy [PDF]

Astronomy & Astrophysics, 2001
Metallicity gradients in the Sagittarius dwarf Galaxy (Sgr) are investigated by using infrared photometric data from the 2MASS survey. To search for metallicity effects, the giant branch in a field situated near the Center of the Sgr is compared to the giant branch in a field situated near its southern edge.
openaire   +4 more sources

From Supermassive Black Holes to Dwarf Elliptical Nuclei: a Mass Continuum

, 2006
Considerable evidence suggests that supermassive black holes reside at the centers of massive galactic bulges. At a lower galactic mass range, many dwarf galaxies contain extremely compact nuclei that structurally resemble massive globular clusters.
Elizabeth H. Wehner, Ferrarese L., Kormendy J., Maccarone T. J., van der Marel R. P., William E. Harris   +5 more
core   +1 more source

On the morphologies, gas fractions, and star formation rates of small galaxies

, 2007
We use a series of N-body/smoothed particle hydrodynamics simulations and analytic arguments to show that the presence of an effective temperature floor in the interstellar medium at T_F ~ 10^4 K naturally explains the tendency for low-mass galaxies to ...
Balsara, Barnes, Bate, Benson, Birnboim, Blitz, Blitz, Blumenthal, Brinchmann, Brooks, Bullock, Bullock, Bullock, Coral Wheeler, Crain, Dalcanton, Dekel, Dekel, Dutton, Efstathiou, Elmegreen, Fall, Geha, Gnedin, Gunn, Hansen, Hoeft, Hunter, James S. Bullock, Katz, Kauffmann, Kauffmann, Kaufmann, Kazantzidis, Kennicutt, Kereš, Klypin, Kravtsov, Kravtsov, Lin, Lisker, Macciò, Maller, Mastropietro, Mayer, Mayer, Mayer, Mayer, Mayer, McKee, Mo, Monaghan, Moore, Moore, Navarro, Peebles, Quinn, Read, Ricotti, Roberts, Robertson, Robertson, Somerville, Somerville, Springel, Stinson, Stinson, Taylor, Thoul, Tobias Kaufmann, Tremonti, Van Zee, Wadsley, White, White, Wong, Yepes, Yoachim   +77 more
core   +2 more sources

Faint Stars in a Faint Galaxy. II. The Low-mass Stellar Initial Mass Function of the Boötes I Ultrafaint Dwarf Spheroidal Galaxy [PDF]

, 2022
Carrie Filion, I. Platais, Rosemary F. Ġ. Wyse, V. Kozhurina-Platais   +3 more
openalex   +1 more source

HI Observations Towards the Sagittarius Dwarf Spheroidal Galaxy

, 1999
We have measured the 21-cm line of Galactic HI over more than 50 square degrees in the direction of the Sagittarius dwarf spheroidal galaxy. The data show no evidence of HI associated with the dwarf spheroidal which might be consider analogous to the Magellanic Stream as it is associated in both position and velocity with the Large Magellanic Cloud ...
Burton, W.B., Lockman, F.J.
openaire   +3 more sources

COLOR–MAGNITUDE DIAGRAM CONSTRAINTS ON THE METALLICITIES, AGES, AND STAR FORMATION HISTORY OF THE STELLAR POPULATIONS IN THE CARINA DWARF SPHEROIDAL GALAXY [PDF]

, 2015
Don A. VandenBerg, Peter B. Stetson, Thomas M. Brown   +2 more
openalex   +1 more source

Overview of the LAMOST survey in the first decade. [PDF]

Innovation (Camb), 2022
Yan H, Li H, Wang S, Zong W, Yuan H, Xiang M, Huang Y, Xie J, Dong S, Yuan H, Bi S, Chu Y, Cui X, Deng L, Fu J, Han Z, Hou J, Li G, Liu C, Liu J, Liu X, Luo A, Shi J, Wu X, Zhang H, Zhao G, Zhao Y.   +26 more
europepmc   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source