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The Habitability of the Galactic Bulge [PDF]

open access: yesLife, 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 ...
Amedeo Balbi, Andjelka Kovačević
exaly   +9 more sources

RR Lyrae Variables as Tracers of the Galactic Bulge Kinematic Structure

open access: yesUniverse, 2022
RR Lyrae stars are recognized as some of the oldest stars in the Universe. In addition, they are some of the few old celestial objects for which distances can be reliably inferred.
Andrea Kunder
exaly   +3 more sources

The Far Side of the Galactic Bar/Bulge Revealed through Semi-regular Variables

open access: yesThe Astronomical Journal, 2023
The Galactic bulge is critical to our understanding of the Milky Way. However, due to the lack of reliable stellar distances, the structure and kinematics of the bulge/bar beyond the Galactic center have remained largely unexplored.
Daniel R. Hey   +10 more
doaj   +1 more source

Blanco DECam Bulge Survey (BDBS). VI. Extinction Maps Toward Southern Galactic Bulge Globular Clusters

open access: yesThe Astrophysical Journal, 2023
We present wide-field, high resolution maps of the color excess for 14 globular clusters toward the Southern Galactic bulge. The maps were derived using Gaia EDR3 astrometry and stellar photometry from the Blanco DECam Bulge Survey, which is a deep, wide-
Justin A. Kader   +11 more
doaj   +1 more source

Tracking millisecond pulsars responsible for the Fermi GeV excess [PDF]

open access: yesEPJ Web of Conferences, 2023
More than 10 years ago, an excess of γ-ray photons coming from the Galactic center was discovered in the Fermi-LAT data. First attributed to dark matter, it has since been shown that it should have at least a partial stellar origin. One hypothesis is the
Berteaud Joanna   +2 more
doaj   +1 more source

The chemical evolution of the Galactic Bulge seen through micro-lensing events

open access: yesEPJ Web of Conferences, 2012
Galactic bulges are central to understanding galaxy formation and evolution. Here we report on recent studies using micro-lensing events to obtain spectra of high resolution and moderately high signal-to-noise ratios of dwarf stars in the Galactic bulge.
Lucatello S.   +8 more
doaj   +1 more source

Thick disk and pseudobulge formation in a clump cluster

open access: yesEPJ Web of Conferences, 2012
Bulges in spiral galaxies have been supposed to be classified into two types: classical bulges or pseudobulges. Classical bulges are thought to form by galactic merger with bursty star formation, whereas pseudobulges are suggested to form by secular ...
Inoue S.
doaj   +1 more source

X-ray Insight into High-Energy Processes in Extreme Galactic Nuclear Environment

open access: yesUniverse, 2022
Nuclear regions of galaxies apparently play a disproportionately large role in regulating their formation and evolution. How this regulation works, however, remains very uncertain.
Q. Daniel Wang
doaj   +1 more source

Prediction of Planet Yields by the PRime-focus Infrared Microlensing Experiment Microlensing Survey

open access: yesThe Astronomical Journal, 2023
The PRime-focus Infrared Microlensing Experiment (PRIME) will be the first to conduct a dedicated near-infrared microlensing survey by using a 1.8 m telescope with a wide field of view of 1.45 deg ^2 at the South African Astronomical Observatory.
Iona Kondo   +5 more
doaj   +1 more source

A clustering-based search for substructures in the Galactic plane and bulge using RR Lyrae stars as tracers

open access: yesAstronomy & Astrophysics
Context. Although many globular clusters (GCs) have been identified in the Galaxy, their population is estimated to be incomplete, especially in regions with significant crowding and/or interstellar extinction, such as the Galactic bulge and plane.
Cristi-Cambiaso N.   +4 more
doaj   +1 more source

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