Results 111 to 120 of about 126,365 (213)

The Galactic Bulge Survey: X-ray observations

, 2011
VizieR online Data Catalogue associated with article published in journal Astronomical Journal (AAS) with title 'The Galactic Bulge Survey: outline and X-ray observations.' (bibcode: 2011ApJS..194 ...
Dieball, A., Rea, N., Britt, C. T., University of Alberta, MacCarone, T. J., Wijnands, R., Ratti, E. M., Steeghs, D., University of Warwick, Collazzi, A. C., University of Southampton, Louisiana State University, Radboud University Nijmegen, Torres, M. A. P., Netherlands Institute for Space Research, Kuulkers, E., SRON Netherlands Institute for Space Research, In'T Zand, J. J. M., Hynes, R. I., Van Haaften, L. M., Verbunt, F., Jonker, P. G., University of Arizona, Mendez, Mariano; id_orcid, Utrecht University, Mikles, V. J., Heinke, C., University of Amsterdam, Mendez, Mariano, Bassa, C. G., Clem, J., Özel, F., Nelemans, G., University of Manchester, ISOC, ESA/ESAC, Urb. Villafranca Del Castillo, Groot, P. J., Institut de Ciencies de l'Espai (ICE, IEEC-CSIC), Campus UAB, Fac. de Ciencies, Greiss, S., Gossen, L., Astronomy, Harvard-Smithsonian Center for Astrophysics   +40 more
core   +1 more source

Spectroscopic metallicities and first α-element abundances of RR Lyrae stars in Baade’s Window

Astronomy & Astrophysics
Context. The shape and kinematics of the metal-poor stellar component of the Galactic bulge are still poorly characterized, and, therefore, the origin of this component is not yet strongly constrained. RR Lyrae stars in the bulge have been reported to be
Olivares Carvajal J., Rojas-Arriagada Á., Zoccali M., Acosta-Tripailao B., De Leo M., Albarracín R., Sanchez-Benavente M., Valenti E., Bono G., Duffau S., Sbordone L., Fabrizio M., Braga V. F.   +12 more
doaj   +1 more source

Inner galactic disc metallicity distributions and the bulge-disc relation

EPJ Web of Conferences, 2012
The intermediate-to-old population of the inner galactic disk remains a relatively uncharted territory. We present the results of a high resolution spectroscopic survey of over 200 red clump stars in the inner galactic disc (3–5 kpc from the galactic ...
Haywood M., Gómez A., Babusiaux C., Hill V., Katz D., Royer F.   +5 more
doaj   +1 more source

Chemistry of the Galactic Bulge

, 1998
The chemical abundances of the Galaxy tell us about the stellar and interstellar medium (ISM) evolution history. By studying the present-day chemistry of various stars (and the ISM), and combining with stellar evolution models and Galactic evolution ...
Barlow, M, Clegg, R, Exter, K, Walton, N, Parker, QA   +4 more
core  

The mass and stellar populations of the Galactic bulge

, 2019
I will present the results of the GIRAFFE Inner Bulge Survey, with particular emphasis on the spatial distributions of the two metallicity populations, and their contribution to the total stellar mass budget of the Galactic bulge.
Zoccali, Manuela (6471485), Zoccali, Manuela   +1 more
core   +1 more source

The Galactic bulge exploration

Astronomy & Astrophysics
We present a new set of period–absolute magnitude–metallicity (PMZ) relations for single-mode RR Lyrae stars calibrated for the optical GBP, V, G, GRP, near-infrared I, J, H, and Ks passbands. We compiled a large dataset (over 100 objects) of fundamental and first-overtone RR Lyrae pulsators consisting of mean intensity magnitudes, reddenings ...
Z. Prudil, A. Kunder, I. Dékány, A. J. Koch-Hansen   +3 more
openaire   +1 more source

Ancient Relic Moderately Metal-rich Bulge Cluster Tonantzintla 2

The Astrophysical Journal Letters
The assembly history of the Galactic bulge is intimately tied to the formation of the proto–Milky Way, yet reconstructing this early phase is difficult because mergers and secular evolution have erased most of its original structure.
Sergio Ortolani, Stefano O. Souza, Domenico Nardiello, Beatriz Barbuy, Eduardo Bica, Bernardo P.L. Ferreira, Cristina Chiappini, José G. Fernández-Trincado, Heitor Ernandes   +8 more
doaj   +1 more source

Interstellar extinction toward the Galactic bulge

, 2019
The past decade has seen rapid progress in studies on the Galactic bulge thanks to many large-scale surveys in both photometric and spectroscopic approaches.
Matsunaga, Noriyuki, Matsunaga, Noriyuki (6471578)   +1 more
core   +1 more source

Nucleosynthesis of Cobalt and Copper

Galaxies
Chemical abundances of cobalt (Co; Z = 27) and copper (Cu; Z = 29) in bulge and halo stars are presented and compared with chemical evolution models.
Beatriz Barbuy, Amâncio C. S. Friaça, Heitor Ernandes   +2 more
doaj   +1 more source

Classical Cepheids behind the Galactic bulge

, 2015
Severe interstellar extinction toward the Galactic plane has prevented the investigation of stellar populations in that region. Pulsating variable stars, particularly Cepheids and Miras, are useful tracers because their distances and ages can be ...
N. Matsunaga
core   +1 more source