Results 101 to 110 of about 12,845 (268)

The DECam MAGIC Survey: A Wide-field Photometric Metallicity Study of the Sculptor Dwarf Spheroidal Galaxy

The Astrophysical Journal
The metallicity distribution function (MDF) and internal chemical variations of a galaxy are fundamental to understand its formation and assembly history.
F. O. Barbosa, A. Chiti, G. Limberg, A. B. Pace, W. Cerny, S. Rossi, J. L. Carlin, G. S. Stringfellow, V. M. Placco, K. Atzberger, J. A. Carballo-Bello, A. Chaturvedi, Y. Choi, D. Crnojević, A. Drlica-Wagner, A. P. Ji, N. Kallivayalil, C. E. Martínez-Vázquez, G. E. Medina, N. E. D. Noël, A. H. Riley, D. J. Sand, A. K. Vivas, C. R. Bom, P. S. Ferguson, B. Mutlu-Pakdil, M. Navabi, J. D. Sakowska, A. Zenteno, (MAGIC & DELVE Collaborations)   +29 more
doaj   +1 more source

Estimating masses of dwarf spheroidal galaxies

, 2014
6 pages, 3 figures, to be published in the Proceedings of the XXXVI Annual Meeting of the Polish Astronomical ...
Kowalczyk, Klaudia, Lokas, Ewa L.
openaire   +2 more sources

The Dark Matter Content of Milky Way Dwarf Spheroidal Galaxies: Draco, Sextans, and Ursa Minor

The Astrophysical Journal
The Milky Way Survey of the Dark Energy Spectroscopic Instrument (DESI) has so far observed three classical dwarf spheroidal galaxies (dSphs): Draco, Sextans, and Ursa Minor.
Hao Yang, Wenting Wang, Ling Zhu, Ting S. Li, Sergey E. Koposov, Jiaxin Han, Songting Li, Rui Shi, Monica Valluri, Alexander H. Riley, Arjun Dey, Constance Rockosi, Carles G. Palau, Jessica Nicole Aguilar, Steven Ahlen, David Brooks, Todd Claybaugh, Andrew Cooper, Axel de la Macorra, Peter Doel, Simone Ferraro, Jaime E. Forero-Romero, Enrique Gaztañaga, Satya Gontcho A Gontcho, Alma Xochitl Gonzalez Morales, Gaston Gutierrez, Julien Guy, Klaus Honscheid, Mustapha Ishak, Dick Joyce, Robert Kehoe, Theodore Kisner, Namitha Kizhuprakkat, Anthony Kremin, Ofer Lahav, Martin Landriau, Laurent Le Guillou, Gustavo E. Medina, Aaron Meisner, Ramon Miquel, Nathalie Palanque-Delabrouille, Francisco Prada, Ignasi Pérez-Ràfols, Graziano Rossi, Eusebio Sanchez, David Schlegel, Michael Schubnell, Joseph Harry Silber, David Sprayberry, Gregory Tarlé, Benjamin Alan Weaver, Rongpu Zhou, Hu Zou   +52 more
doaj   +1 more source

The early days of the Sculptor dwarf spheroidal galaxy [PDF]

, 2015
We present the high resolution spectroscopic study of five -3 ...
Battaglia, G., Francois, P., Helmi, A., Hill, V., Irwin, M., Jablonka, P., Mashonkina, L., North, P., Primas, F., Revaz, Y., Shetrone, M., Starkenburg, E., Tolstoy, E., Venn, K.   +13 more
core   +4 more sources

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

, 2022
Isabel Santos-Santos, Julio F. Navarro, Alan W. McConnachie   +2 more
openalex   +1 more source

Dark Matter Searches with HAWC

, 2017
The High Altitude Water Cherenkov (HAWC) gamma-ray observatory is a wide field-of-view observatory sensitive to 0.5 TeV - 100 TeV gamma-rays and cosmic-rays in the State of Puebla, Mexico at an altitude of 4100m.
Smith, Andrew J., Yapici, Tolga
core   +1 more source

A UNIVERSAL MASS PROFILE FOR DWARF SPHEROIDAL GALAXIES?

The Astrophysical Journal, 2009
Replacement provides corrections to values of half-light radii adopted for eight classical dSphs, including revised tables and figures (conclusions are unchanged).
Walker, Matthew G., Mateo, Mario, Olszewski, Edward W., Peñarrubia, Jorge, Evans, N. Wyn, Gilmore, Gerard   +5 more
openaire   +2 more sources

DELVE-DEEP Survey: The Faint Satellite System of NGC 55

The Astrophysical Journal
We report the first comprehensive census of the satellite dwarf galaxies around NGC 55 (2.1 Mpc) as a part of the DECam Local Volume Exploration DEEP (DELVE-DEEP) survey. NGC 55 is one of four isolated, Magellanic analogs in the Local Volume around which
Jonah Medoff, Burçin Mutlu-Pakdil, Jeffrey L. Carlin, Alex Drlica-Wagner, Erik J. Tollerud, Amandine Doliva-Dolinsky, David J. Sand, Clara E. Martínez-Vázquez, Guy S. Stringfellow, William Cerny, Denija Crnojević, Peter S. Ferguson, Catherine E. Fielder, Astha Chaturvedi, Nitya Kallivayalil, Noelia E. D. Noël, Kathy Vivas, Alistair R. Walker, Monika Adamów, Clecio R. Bom, Julio A. Carballo-Bello, Yumi Choi, Gustavo E. Medina, Mahdieh Navabi, Andrew B. Pace, Alex H. Riley, Joanna D. Sakowska   +26 more
doaj   +1 more source

Schwarzschild models of the Sculptor dSph galaxy

EPJ Web of Conferences, 2012
We have developed a spherically symmetric dynamical model of a dwarf spheroidal galaxy using the Schwarzschild method. This type of modelling yields constraints both on the total mass distribution (e.g.
van de Ven G., van den Bosch R.C.E., Helmi A., Breddels M.A., Battaglia G.   +4 more
doaj   +1 more source

A Study of Abundance Patterns in the Sextans and Sculptor Dwarf Spheroidal Galaxies

The Astrophysical Journal
In this work, we employ a multicomponent decomposition model to study the Sextans and Sculptor dwarf spheroidal galaxies, which have distinct evolutionary histories.
Shuaishuai Yang, Shichao Zhang, Lu Zhang, Hongjie Li   +3 more
doaj   +1 more source