Results 121 to 130 of about 12,545 (267)

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

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

γ-ray and ν Searches for Dark-Matter Subhalos in the Milky Way with a Baryonic Potential

Galaxies, 2019
The distribution of dark-matter (DM) subhalos in our galaxy remains disputed, leading to varying γ -ray and ν flux predictions from their annihilation or decay.
Moritz Hütten, Martin Stref, Céline Combet, Julien Lavalle, David Maurin   +4 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

An Extremely Carbon-rich, Extremely Metal-poor Star in the Segue 1 System

, 2010
We report the analysis of high-resolution, high-S/N spectra of an extremely metal-poor, extremely C-rich red giant, Seg 1-7, in the Segue 1 system - described in the literature alternatively as an unusually extended globular cluster or an ultra-faint ...
Abazajian, Aoki, Aoki, Aoki, Aoki, Belokurov, Carollo, Castelli, Christlieb, Demarque, Frebel, Geha, Gratton, Lucatello, Martin, Nomoto, Norris, Norris, Norris, Norris, Norris, Preston, Simon, Unavane   +23 more
core   +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

A Survey for Low-Surface-Brightness Galaxies Around M31. I. The Newly Discovered Dwarf Andromeda V

, 1998
We present images and a color-magnitude diagram for And V, a new dwarf spheroidal companion to M31 that was found using a digital filtering technique applied to 1550 square degrees of the second Palomar Sky Survey.
Bertelli G., Bremmes T., Davies J. I., Dean J. F., George H. Jacoby, James E. Davies, Karachentsev I., Schmidt K.-H., Taft E. Armandroff, van den Bergh S.   +9 more
core   +3 more sources

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

Dark Matter And The Habitability of Planets

, 2012
In many models, dark matter particles can elastically scatter with nuclei in planets, causing those particles to become gravitationally bound. While the energy expected to be released through the subsequent annihilations of dark matter particles in the ...
Hooper, Dan, Steffen, Jason H.
core   +1 more source