Results 171 to 180 of about 605,159 (270)

Elliptical Galaxy Halo Masses from Internal Kinematics

, 2006
The halo masses of nearby individual elliptical galaxies can be estimated by using the kinematics of their stars, planetary nebulae, and globular clusters–ideally in combination.
A.J. Romanowsky
core   +1 more source

Kinematics across bulge types a longslit kinematic survey and dedicated instrumentation

, 2012
Der erste Teil dieser Arbeit stellt die Konstruktion, Inbetriebnahme und ersteDaten eines neuen optischen, faserbasierten Feldspektrographen namens VIRUS-Wvor. Die Entwicklung wurde durch den Bau des neuen 2 m Fraunhofer Teleskops aufdem Berg Wendelstein
Fabricius, Maximilian Hieronymus
core  

EMPRESS. XII. Statistics on the Dynamics and Gas Mass Fraction of Extremely Metal-poor Galaxies

The Astrophysical Journal
We  present the demography of the dynamics and gas mass fraction of 33 extremely metal-poor galaxies (EMPGs) with metallicities of 0.015–0.195 Z _⊙ and low stellar masses of 10 ^4 –10 ^8 M _⊙ in the local universe.
Yi Xu, Masami Ouchi, Yuki Isobe, Kimihiko Nakajima, Shinobu Ozaki, Nicolas F. Bouché, John H. Wise, Eric Emsellem, Haruka Kusakabe, Takashi Hattori, Tohru Nagao, Gen Chiaki, Hajime Fukushima, Yuichi Harikane, Kohei Hayashi, Yutaka Hirai, Ji Hoon Kim, Michael V. Maseda, Kentaro Nagamine, Takatoshi Shibuya, Yuma Sugahara, Hidenobu Yajima, Shohei Aoyama, Seiji Fujimoto, Keita Fukushima, Shun Hatano, Akio K. Inoue, Tsuyoshi Ishigaki, Masahiro Kawasaki, Takashi Kojima, Yutaka Komiyama, Shuhei Koyama, Yusei Koyama, Chien-Hsiu Lee, Akinori Matsumoto, Ken Mawatari, Takashi J. Moriya, Kentaro Motohara, Kai Murai, Moka Nishigaki, Masato Onodera, Yoshiaki Ono, Michael Rauch, Tomoki Saito, Rin Sasaki, Akihiro Suzuki, Tsutomu T. Takeuchi, Hiroya Umeda, Masayuki Umemura, Kuria Watanabe, Kiyoto Yabe, Yechi Zhang   +51 more
doaj   +1 more source

The GALAH survey: Searching for and characterizing halo substructures with the GALAH DR4 survey

Astronomy & Astrophysics
Context. Recent studies have revealed that the Milky Way’s stellar halo is a composite of stellar populations of different origins, including multiple accretion events.
Kushniruk Iryna, Youakim Kristopher, Lind Karin, Buder Sven, Kos Janes, Feuillet Diane, Martell Sarah L., de Grijs Richard, Lewis Geraint F., Bland-Hawthorn Joss, Da Costa Gary, Hayden Michael, Zucker Daniel, Zwitter Tomaz, Sharma Sanjib   +14 more
doaj   +1 more source

The Effects of Bar Strength and Kinematics on Galaxy Evolution: Slow Strong Bars Affect Their Hosts the Most

The Astrophysical Journal
We study how bar strength and bar kinematics affect star formation in different regions of the bar by creating radial profiles of EW[H α ] and D _n 4000 using data from Sloan Digital Sky Survey-IV Mapping Nearby Galaxies at Apache Point Observatory ...
Tobias Géron, R. J. Smethurst, Chris Lintott, Karen L. Masters, I. L. Garland, Petra Mengistu, David O’Ryan, B. D. Simmons   +7 more
doaj   +1 more source

The Kinematic Signature of the Warp and Waves in the Milky Way Disk

The Astrophysical Journal
Using over 170,000 red clump (RC) stars selected from LAMOST and APOGEE, we conduct a detailed analysis of the stellar V _Z as a function of L _Z (or R _g ) across different ϕ bins for various disk populations.
Weixiang Sun, Han Shen, Biwei Jiang, Xiaowei Liu   +3 more
doaj   +1 more source

Galaxies: kinematics to dynamics [PDF]

, 2001
openaire   +1 more source

A direct black-hole mass measurement in a little red dot at high redshift. [PDF]

Nature
Juodžbalis I, Marconcini C, D'Eugenio F, Maiolino R, Marconi A, Übler H, Scholtz J, Ji X, Jones GC, Perna M, Arribas S, Bennett JS, Bromm V, Bunker AJ, Carniani S, Charlot S, Cresci G, Dayal P, Egami E, Fabian A, Inayoshi K, Isobe Y, Ivey LR, Koudmani S, Laporte N, Liu B, Lyu J, Mazzolari G, Monty S, Parlanti E, Pérez-González PG, Robertson B, Schneider R, Sijacki D, Tacchella S, Trinca A, Valiante R, Volonteri M, Witstok J, Zhang S.   +39 more
europepmc   +1 more source

Simulations of multi-phase gas in and around galaxies. [PDF]

Living Rev Comput Astrophys
Gronke M, E Schneider E.
europepmc   +1 more source

Stellar kinematics using a third integral of motion: method and application on the Andromeda galaxy

We probe the feasibility of describing the structure of a multicomponent axisymmetric galaxy with a dynamical model based on the Jeans equations while taking into account a third integral of motion.
Tihhonova, O., Tempel, E., Kipper, R., Tenjes, P., Tamm, A.   +4 more
core   +1 more source