Results 11 to 20 of about 1,514,532 (341)

The Population of the Galactic Center Filaments: Position Angle Distribution Reveals a Degree-scale Collimated Outflow from Sgr A* along the Galactic Plane

open access: yesThe Astrophysical Journal Letters, 2023
We have examined the distribution of the position angle (PA) of the Galactic center filaments with lengths L > 66″ and
F. Yusef-Zadeh   +3 more
doaj   +1 more source

Revisiting Galactic Disk and Spiral Arms Using Open Clusters

open access: yesThe Astronomical Journal, 2023
We use the largest catalog of open clusters in the post-Gaia era to provide an observational view of the Galactic disk. By compiling physical parameters such as age, distance, and kinematic information, we investigate the spatial distribution of open ...
Yogesh C. Joshi, Sagar Malhotra
doaj   +1 more source

A Measurement of the Galactic Plane Mass Density from Binary Pulsar Accelerations

open access: yes, 2021
We use compiled high-precision pulsar timing measurements to directly measure the Galactic acceleration of binary pulsars relative to the solar system barycenter. Given the vertical accelerations, we use the Poisson equation to derive the Oort limit, i.e.
S. Chakrabarti   +4 more
semanticscholar   +1 more source

Prospects for detection of a galactic diffuse neutrino flux

open access: yesFrontiers in Astronomy and Space Sciences, 2022
A Galactic cosmic-ray transport model featuring non-homogeneous transport has been developed over the latest years. This setup is aimed at reproducing γ-ray observations in different regions of the Galaxy (with particular focus on the progressive ...
P. De La Torre Luque   +6 more
doaj   +1 more source

Three-dimensional interstellar dust reddening maps of the Galactic plane [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
We present new three-dimensional (3D) interstellar dust reddening maps of the Galactic plane in three colours, E(G-Ks), E(Bp-Rp) and E(H-Ks). The maps have a spatial angular resolution of 6 arcmin and covers over 7000 deg$^2$ of the Galactic plane for ...
B.-Q. Chen   +8 more
semanticscholar   +1 more source

Position and Proper Motion of Sagittarius A* in the ICRF3 Frame from VLBI Absolute Astrometry

open access: yesThe Astronomical Journal, 2023
Sagittarius A* (Sgr A*) is a strong, compact radio source believed to be powered by a supermassive black hole at the galactic center. Extinction by dust and gas in the galactic plane prevents observing it optically, but its position and proper motion ...
David Gordon   +2 more
doaj   +1 more source

GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey II: Galactic plane 345° < l < 67°, 180° < l < 240° [PDF]

open access: yesPublications Astronomical Society of Australia, 2019
This work makes available a further $2\,860~\text{deg}^2$ of the GaLactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey, covering half of the accessible galactic plane, across 20 frequency bands sampling 72–231 MHz, with resolution ...
N. Hurley-Walker   +18 more
semanticscholar   +1 more source

Decomposing the Origin of TeV–PeV Emission from the Galactic Plane: Implications of Multimessenger Observations

open access: yesThe Astrophysical Journal Letters, 2023
High-energy neutrino and γ -ray emission has been observed from the Galactic plane, which may come from individual sources and/or diffuse cosmic rays.
Ke Fang, Kohta Murase
doaj   +1 more source

FOREST Unbiased Galactic plane Imaging survey with the Nobeyama 45-m telescope (FUGIN) I: Project Overview and Initial Results [PDF]

open access: yes, 2017
The FOREST Unbiased Galactic plane Imaging survey with the Nobeyama 45-m telescope (FUGIN) project is one of the legacy projects using the new multi-beam FOREST receiver installed on the Nobeyama 45-m telescope.
T. Umemoto   +43 more
semanticscholar   +1 more source

The VLA Galactic Plane Survey [PDF]

open access: yes, 2006
The VLA Galactic Plane Survey (VGPS) is a survey of HI and 21-cm continuum emission in the Galactic plane between longitude 18 degrees 67 degr. with latitude coverage from |b| < 1.3 degr. to |b| < 2.3 degr.
A. I. Boothroyd   +16 more
core   +3 more sources

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