Results 91 to 100 of about 12,845 (268)

On the Hunt for the Origins of the Orphan–Chenab Stream: Detailed Element Abundances with APOGEE and Gaia

The Astrophysical Journal, 2023
Stellar streams in the Galactic halo are useful probes of the assembly of galaxies like the Milky Way. Many tidal stellar streams that have been found in recent years are accompanied by a known progenitor globular cluster or dwarf galaxy.
Keith Hawkins, Adrian M. Price-Whelan, Allyson A. Sheffield, Aidan Z. Subrahimovic, Rachael L. Beaton, Vasily Belokurov, Denis Erkal, Sergey E. Koposov, Richard R. Lane, Chervin F. P. Laporte, Christian Nitschelm   +10 more
doaj   +1 more source

Revealing the Structure and Internal Rotation of the Sagittarius Dwarf Spheroidal Galaxy with Gaia and Machine Learning [PDF]

, 2021
Andrés del Pino, Mark A. Fardal, Roeland P. van der Marel, Ewa L. Łokas, Cecilia Mateu, Sangmo Tony Sohn   +5 more
openalex   +1 more source

STELLAR KINEMATICS OF THE ANDROMEDA II DWARF SPHEROIDAL GALAXY [PDF]

The Astrophysical Journal, 2012
14 pages, 10 figures, 4 tables, accepted for publication in ...
Ho, Nhung, Geha, M., Munoz, R. R., Guhathakurta, P., Kalirai, J., Gilbert, K. M., Tollerud, E., Bullock, J., Beaton, R. L., Majewski, S. R.   +9 more
openaire   +5 more sources

Dark Matter Gamma-ray searches in Galaxy Clusters: Status and prospects [PDF]

EPJ Web of Conferences
Galaxy clusters are the largest structures in the Universe, being dark matter (DM) dominated objects. For DM decay, they yield the highest expected fluxes with respect to other prime targets.
Pérez-Romero Judit
doaj   +1 more source

Chemical Properties of Star-Forming Emission Line Galaxies at z=0.1 - 0.5

, 1998
We measure oxygen and nitrogen abundances for 14 star-forming emission line galaxies (ELGs) at 0 ...
Bender R., Davies J. I., Dennis Zaritsky, Edmunds M. G., Henry A. Kobulnicky, Howarth I. D., Hummer D. G., Larson R. B., Lequeux J., Madau P., Mateo M., Pagel B. E. J., Pagel B. E. J., Pagel B. E. J., Pagel B. E. J., Renzini A., Rix H. W., Schneider D. P., Seaton M. J., Telles E., Telles E., Terlevich R., van Zee L.   +22 more
core   +3 more sources

Molecular Gas Properties in Young Stellar Clusters with a Suppressed Star Cluster Wind

The Astrophysical Journal Letters, 2023
In compact and dense star-forming clouds a global star cluster wind could be suppressed. In this case stellar feedback is unable to expel the leftover gas from the cluster. Young massive stars remain embedded in a dense residual gas and stir it by moving
Sergiy Silich, Jean Turner, Jonathan Mackey, Sergio Martínez-González   +3 more
doaj   +1 more source

Searches for HI in the Outer Parts of Four Dwarf Spheroidal Galaxies

, 1999
Previous searches for atomic gas in our Galaxy's dwarf spheroidal companions have not been complete enough to settle the question of whether or not these galaxies have HI, especially in their outer parts.
Young, L. M.
core   +2 more sources

The Tucana dwarf spheroidal: a distant backsplash galaxy of M31? [PDF]

, 2023
Isabel Santos-Santos, Julio F. Navarro, Alan W. McConnachie   +2 more
openalex   +1 more source

The Binary Fraction of Stars in the Dwarf Galaxy Ursa Minor via Dark Energy Spectroscopic Instrument

The Astrophysical Journal
We utilize multiepoch line-of-sight velocity measurements from the Milky Way Survey of the Dark Energy Spectroscopic Instrument to estimate the binary fraction for member stars in the dwarf spheroidal galaxy Ursa Minor (UMi).
Tian Qiu, Wenting Wang, Sergey E. Koposov, Ting S. Li, Nathan R. Sandford, Joan Najita, Songting Li, Jiaxin Han, Arjun Dey, Constance Rockosi, Boris Gaensicke, Jesse Han, Benjamin Alan Weaver, Adam D. Myers, Jessica Nicole Aguilar, Steven Ahlen, Carlos Allende Prieto, Davide Bianchi, David Brooks, Todd Claybaugh, Axel de la Macorra, Peter Doel, Andreu Font-Ribera, Jaime E. Forero-Romero, Enrique Gaztañaga, Satya Gontcho A Gontcho, Gaston Gutierrez, Jorge Jimenez, Dick Joyce, Theodore Kisner, Claire Lamman, Martin Landriau, Laurent Le Guillou, Aaron Meisner, Ramon Miquel, Seshadri Nadathur, Will Percival, Claire Poppett, Francisco Prada, Ignasi Pérez-Ràfols, Graziano Rossi, Eusebio Sanchez, David Schlegel, Joseph Harry Silber, David Sprayberry, Gregory Tarlé, Rongpu Zhou, Hu Zou   +47 more
doaj   +1 more source

The ability of intermediate-band Stromgren photometry to correctly identify dwarf, subgiant, and giant stars and provide stellar metallicities and surface gravities

, 2010
[Abridged] Several large scale photometric and spectroscopic surveys are being undertaken to provide a more detailed picture of the Milky Way. Given the necessity of generalisation in the determination of, e.g., stellar parameters when tens and hundred ...
A. S. Árnadóttir, Abazajian, Adén, Adén, Alonso, Alonso, Anthony-Twarog, Anthony-Twarog, Arce, Arellano Ferro, Beers, Bell, Bensby, Bond, Bond, Bonfils, Bonifacio, Calamida, Calamida, Carney, Carollo, Chen, Clausen, Clem, Cohen, Cousins, Crawford, Crawford, Edvardsson, Faria, Favata, Feltzing, Ferguson, Flynn, Gilmore, Grebel, Grundahl, Grønbech, Gustafsson, Gustafsson, Haywood, Heiter, Helmi, Hilker, Holmberg, I. Lundström, Ibata, Ivezic, Johnson, Jønch-Sørensen, Kirby, Kotoneva, Landolt, Lee, Lester, Luck, Malyuto, Martell, Martell, Mermilliod, Mishenina, Nissen, Nordström, Ochsenbein, Olsen, Olsen, Olsen, Olsen, Olsen, Olsen, Perry, Perryman, Ramírez, Ramírez, Ramírez, S. Feltzing, Santos, Santos, Santos, Schlegel, Schuster, Schuster, Schuster, Schuster, Schuster, Schuster, Sousa, Strigari, Strömgren, Strömgren, Thorén, Twarog, Twarog, Valenti, van Leeuwen, Vandenberg, VandenBerg, von Hippel, von Hippel, Woolf, Yasuda, Yong, York, Önehag   +103 more
core   +1 more source