Results 121 to 130 of about 12,786 (266)

The Extended Stellar Distribution in the Outskirts of the Ursa Minor Dwarf Spheroidal Galaxy

The Astrophysical Journal Letters
We discover an extended distribution of main-sequence (MS) stars along the minor axis of the Ursa Minor (UMi) dwarf spheroidal galaxy (dSph). This study is enabled by deep, wide Subaru/Hyper Suprime-Cam data, reaching photometric uncertainties below 0.1 ...
Kyosuke S. Sato, Sakurako Okamoto, Masafumi Yagi, Yutaka Komiyama, Nobuo Arimoto, Rosemary F.G. Wyse, Evan N. Kirby, Masashi Chiba, Itsuki Ogami, Mikito Tanaka   +9 more
doaj   +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

A Census of Dwarf Galaxy Satellites around LMC-mass Galaxy NGC 2403

The Astrophysical Journal
We present the first comprehensive census of the satellite population around a Large Magellanic Cloud stellar-mass galaxy, as part of the Magellanic Analog Dwarf Companions and Stellar Halos (MADCASH) survey. We have surveyed NGC 2403 ( D = 3.0 Mpc) with
Jeffrey L. Carlin, David J. Sand, Burçin Mutlu-Pakdil, Denija Crnojević, Amandine Doliva-Dolinsky, Christopher T. Garling, Annika H. G. Peter, Jean P. Brodie, Duncan A. Forbes, Jonathan R. Hargis, Aaron J. Romanowsky, Kristine Spekkens, Jay Strader, Beth Willman   +13 more
doaj   +1 more source

Subaru Telescope -History, active/adaptive optics, instruments, and scientific achievements. [PDF]

Proc Jpn Acad Ser B Phys Biol Sci, 2021
Iye M.
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

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

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

Search for gamma-ray emission from the nearby dwarf spheroidal galaxies with 9 years of Fermi-LAT data

, 2018
In this work, we search for $\gamma$-ray emission from the directions of some nearby Milky Way dwarf spheroidal galaxies (dSphs) and candidates with the publicly-available Pass 8 data of Fermi-LAT.
Chang, Jin, Duan, Kai-Kai, Fan, Yi-Zhong, Feng, Lei, Li, Shang, Li, Xiang, Liang, Yun-Feng, Liao, Neng-Hui, Shen, Zhao-Qiang, Xia, Zi-Qing, Yuan, Qiang   +10 more
core   +1 more source

Dark matter interpretation of the Fermi-LAT observations toward the outer halo of M31. [PDF]

Phys Rev D, 2021
Karwin CM, Murgia S, Moskalenko IV, Fillingham SP, Burns AK, Fieg M.   +5 more
europepmc   +1 more source

A Stellar Mass Threshold for Quenching of Field Galaxies

, 2012
We demonstrate that dwarf galaxies (10^7 < M_stellar < 10^9 Msun) with no active star formation are extremely rare (
Aihara, Balogh, Behroozi, Bell, Blanton, Blanton, Blanton, Blanton, Blanton, Blanton, Brown, Bryan, Gabor, Geha, Giovanelli, Grcevich, J. L. Tinker, Karachentseva, Kewley, Lisker, Ludlow, M. Geha, M. R. Blanton, Peng, Peng, R. Yan, Salim, Tinker, Walsh, Wang, Weisz, Willick, Woo, Wuyts, Yan, Yan, Yang, Zehavi   +37 more
core   +1 more source