Results 21 to 30 of about 176,166 (252)
The Complex Structure of the Bulge of M31
The Astrophysical Journal Supplement Series, 2023 The bulge of M31 is of interest regarding the nature of galactic bulges and how their structure relates to bulge formation mechanisms and their subsequent evolution.
Denis Leahy +2 more
doaj +1 more source
Angular momentum evolution of bulge stars in disc galaxies in NIHAO [PDF]
, 2018 We study the origin of bulge stars and their angular momentum (AM) evolution in 10 spiral galaxies with baryonic masses above $10^{10}$M$_\odot$ in the NIHAO galaxy formation simulations.
Dutton, Aaron A. +8 more
core +2 more sources
Chemical Composition of Faint (I~21 mag) Microlensed Bulge Dwarf OGLE-2007-BLG-514S [PDF]
, 2009 We present a high-resolution spectrum of a microlensed G dwarf in the Galactic bulge with spectroscopic temperature T_eff = 5600 +/- 180 K. This I~21 mag star was magnified by a factor ranging from 1160 to 1300 at the time of observation.
Alonso +55 more
core +2 more sources
Developmental Cell, 2004 Two recent papers--one from the group of Elaine Fuchs in Science and the other from the group of George Costarelis in Nature Biotechnology--on the isolation and multipotentiality of adult hair follicle stem cells catapult us ahead in our understanding of epidermal and hair follicle lineages.
openaire +2 more sources
On the star orbits in the Milky-Way bulge [PDF]
Serbian Astronomical Journal, 2000 The Milky-Way bulge is studied through calculating the galactocentric orbits of imaginary bulge stars for initial conditions simulating the bulge. The author assumes a velocity distribution characterized by bulge rotation and isotropy of the residual ...
Ninković S.
doaj +1 more source
The Habitability of the Galactic Bulge [PDF]
Life, 2020 We present a new investigation of the habitability of the Milky Way bulge, that expands previous studies on the Galactic Habitable Zone. We discuss existing knowledge on the abundance of planets in the bulge, metallicity and the possible frequency of rocky planets, orbital stability and encounters, and the possibility of planets around the central ...
Balbi, Amedeo +2 more
openaire +5 more sources
Reconciling the Galactic Bulge Turnoff Age Discrepancy with Enhanced Helium Enrichment [PDF]
, 2012 We show that the factor $\sim$2 discrepancy between spectroscopic and photometric age determinations of the Galactic bulge main-sequence turnoff can be naturally explained by positing an elevated helium enrichment for the bulge relative to that assumed ...
Bekki +26 more
core +1 more source
Annual Review of Astronomy and Astrophysics, 1997 ▪ Abstract We discuss the present observational and theoretical understanding of the stellar populations of bulges and their implications for galaxy formation and evolution. The place of bulges as key to the Hubble Sequence remains secure, but some old paradigms are giving way to new ones as observations develop. Detailed studies of Local Group bulges
Wyse, Rosemary F. G. +2 more
openaire +2 more sources
Cerebral Blood Flow Disorder in Acute Subdural Hematoma and Acute Intraoperative Brain Bulge
Frontiers in Neurology, 2022 ContextAcute subdural hematoma (ASDH) has a high incidence and high mortality. During surgery for ASDH, brain tissue sometimes rapidly swells and protrudes into the bone window during or after removal of the hematoma.
Liang Xian +4 more
doaj +1 more source
The COMBS survey I : Chemical Origins of Metal-Poor Stars in the Galactic Bulge [PDF]
, 2019 19 pages, 5 tables, accepted to MNRASChemistry and kinematic studies can determine the origins of stellar population across the Milky Way. The metallicity distribution function of the bulge indicates that it comprises multiple populations, the more metal-
Asplund, Martin +9 more
core +3 more sources