Results 141 to 150 of about 3,773,384 (268)

A Millisecond Pulsar Binary Embedded in a Galactic Center Radio Filament

The Astrophysical Journal Letters
The Galactic center is host to a population of extraordinary radio filaments, thin linear structures that trace out magnetic field lines running perpendicular to the Galactic plane.
Marcus E. Lower, Shi Dai, Simon Johnston, Ewan D. Barr   +3 more
doaj   +1 more source

Radio Continuum and Recombination Line Studies of the Galactic Center [PDF]

, 1974
M. A. Gordon
openalex   +1 more source

KMOS in the Galactic Center

, 2018
The Galactic centre is a unique target to study the central region of a galaxy. At a distance of only 8 kpc from Earth, we find the main components of galaxy nuclei: a supermassive black hole, billions of stars, and a large amount of interstellar gas and dust in the central molecular zone, with ongoing star formation.
openaire   +3 more sources

Low-frequency Absorption and Radio Recombination Line Features of the Galactic Center Lobe

The Astrophysical Journal
The Galactic center lobe (GCL) is a ∼1° object located north of the Galactic center. In the mid-infrared, the GCL appears as two 8.0 μ m filaments that roughly define an ellipse.
Natasha Hurley-Walker, L. D. Anderson, M. Luisi, N. M. McClure-Griffiths, Robert A. Benjamin, Michael A. Kuhn, Dylan J. Linville, B. Liu, Catherine Zucker   +8 more
doaj   +1 more source

SMM detection of interstellar Al-26 gamma radiation [PDF]

The gamma ray spectrometer on the Solar Maximum Mission Satellite has detected the interstellar Al-26 line when the Galactic center traversed its aperture. The center of the emission is consistent with the location of the Galactic center, but the spatial
Chupp, E. L., Forrest, D. J., Kinzer, R. L., Rieger, E., Share, G. H.   +4 more
core   +1 more source

The power of monitoring stellar orbits

, 2010
The center of the Milky Way hosts a massive black hole. The observational evidence for its existence is overwhelming. The compact radio source Sgr A* has been associated with a black hole since its discovery.
Bartko, H., Dodds-Eden, K., Eisenhauer, F., Fritz, T. K., Genzel, R., Gillessen, S., Ott, T., Pfuhl, O.   +7 more
core  

First Mid-infrared Detection and Modeling of a Flare from Sgr A*

The Astrophysical Journal Letters
The time-variable emission from the accretion flow of Sgr A*, the supermassive black hole at the Galactic center, has long been examined in the radio-to-millimeter, near-infrared (NIR), and X-ray regimes of the electromagnetic spectrum.
Sebastiano D. von Fellenberg, Tamojeet Roychowdhury, Joseph M. Michail, Zach Sumners, Grace Sanger-Johnson, Giovanni G. Fazio, Daryl Haggard, Joseph L. Hora, Alexander Philippov, Bart Ripperda, Howard A. Smith, S. P. Willner, Gunther Witzel, Shuo Zhang, Eric E. Becklin, Geoffrey C. Bower, Sunil Chandra, Tuan Do, Macarena Garcia Marin, Mark A. Gurwell, Nicole M. Ford, Kazuhiro Hada, Sera Markoff, Mark R. Morris, Joey Neilsen, Nadeen B. Sabha, Braden Seefeldt-Gail   +26 more
doaj   +1 more source

Magnetic Field Strengths in the Vicinity of Sgr A* via 18 cm Zeeman Observations

The Astrophysical Journal
Very Large Array (VLA) observations of 18 cm OH absorption lines were used to determine the strength of the line-of-sight magnetic field in the Galactic center region. This study is an extension of the VLA OH Zeeman observations of Killeen et al.
K. L. Thompson, T. H. Troland, R. L. Plante   +2 more
doaj   +1 more source

Subclustering and Star Formation Efficiency in Three Protoclusters in the Central Molecular Zone

The Astrophysical Journal Letters
We present the highest-resolution (∼0 $\mathop{.}\limits^{^{\prime\prime} }$ 04) Atacama Large Millimeter/submillimeter Array 1.3 mm continuum observations so far of three massive star-forming clumps in the Central Molecular Zone (CMZ), namely 20 km s ...
Suinan Zhang, Xing Lu, Adam Ginsburg, Nazar Budaiev, Yu Cheng, Hauyu Baobab Liu, Tie Liu, Qizhou Zhang, Keping Qiu, Siyi Feng, Thushara Pillai, Xindi Tang, Elisabeth A. C. Mills, Qiuyi Luo, Shanghuo Li, Namitha Issac, Xunchuan Liu, Fengwei Xu, Jennifer Wallace, Xiaofeng Mai, Yan-Kun Zhang, Cara Battersby, Steven N. Longmore, Zhiqiang Shen   +23 more
doaj   +1 more source

The distance to the galactic center and the zero point of the Cepheid period-luminosity relation.

, 1954
Harold F. Weaver
openalex   +1 more source