Results 151 to 160 of about 136,681 (287)

The FAST H i 21 cm Absorption Blind Survey. II. Statistical Exploration for Associated and Intervening Systems

The Astrophysical Journal Supplement Series
We present an extragalactic H i 21 cm absorption lines catalog from a blind search at z ≤ 0.35, using drift-scan data collected in 1325.6 hr by the ongoing Commensal Radio Astronomy Fast Survey and FAST All Sky H i Survey, which spans a sky area of 6072 ...
Wenkai Hu, Yougang Wang, Yichao Li, Wenxiu Yang, Yidong Xu, Fengquan Wu, Ue-Li Pen, Jie Wang, Yingjie Jing, Chen Xu, Qingze Chen, Zheng Zheng, Di Li, Ming Zhu, Xin Zhang, Xuelei Chen   +15 more
doaj   +1 more source

SN Ia 2025bvm in the Seyfert galaxy NGC 4156: Early detection and follow-up observations

Astronomy & Astrophysics
Aims. We investigated the photometric and spectroscopic evolution of SN Ia 2025bvm to perform a detailed classification and provide an independent distance estimate for the host galaxy NGC 4156. Methods.
Tsvetkov D. Yu., Oknyansky V. L., Pavlyuk N. N., Metlov V. G., Chelouche D., Sobrino Figaredo C., Kaspi S., Ikonnikova N. P., Burlak M. A., Belinski A. A., Echeistov V. A., Dodin A. V., Potanin S. A., Shatsky N. I.   +13 more
doaj   +1 more source

Demystifying Strange O vi Line Widths with Hydrodynamic Simulations

The Astrophysical Journal
We present a survey of O vi line widths obtained from hydrodynamic simulations that model the mixing between high-velocity clouds and the circumgalactic medium and track the nonequilibrium ionization populations of the ions.
Chen Wang, Eric Goetz, Robin Shelton
doaj   +1 more source

ALMA Observations of Peculiar Embedded Icy Objects

The Astrophysical Journal
We report the results of molecular line observations with the Atacama Large Millimeter/submillimeter Array (ALMA) toward two peculiar icy objects, which were discovered serendipitously by infrared spectroscopic survey of the Galactic plane with the AKARI
Takashi Shimonishi, Takashi Onaka, Itsuki Sakon   +2 more
doaj   +1 more source

Polarization of interstellar molecular radiofrequency absorption lines

The Astrophysical Journal, 1983
N. D. Kylafis, P. R. Shapiro
openaire   +1 more source

Absorption Lines Produced in Interstellar Grains.

The Astronomical Journal, 1963
J. Mayo Greenberg, Pearl R. Lichtenstein
openaire   +1 more source

Small scale H I structure and the soft X-ray background [PDF]

The observed anticorrelation between diffuse soft X-ray flux and H I column density has been explained as absorption of soft X-rays produced in a hot galactic halo, assuming that the neutral interstellar material is sufficiently clumped to reduce the ...
Jahoda, K., Lockman, F. J., Mccammon, D.
core   +1 more source

Analysis of the absorption line profile at 21 cm for the hydrogen atom in the interstellar medium [PDF]

, 2018
D. Solovyev
openalex   +1 more source

HI 21cm-line observations with the GMRT towards interstellar clouds\n previously seen in optical absorption [PDF]

, 2000
Rekhesh Mohan, K. S. Dwarakanath, G. Srinivasan, Jayaram N. Chengalur   +3 more
openalex   +1 more source

On interstellar Fe X forbidden line absorption. III - The lambda 6367 feature

, 1985
L. Hobbs
semanticscholar   +1 more source