Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Savage, Blair D"'
Autor:
Ritchey, Adam M., Jenkins, Edward B., Shull, J. Michael, Savage, Blair D., Federman, S. R., Lambert, David L.
Publikováno v:
ApJ, 952:57 (26pp), 2023
In this investigation, we present an analysis of the metallicity distribution that pertains to neutral gas in the local Galactic interstellar medium (ISM). We derive relative ISM metallicities for a sample of 84 sight lines probing diffuse atomic and
Externí odkaz:
http://arxiv.org/abs/2301.09743
Autor:
Cashman, Frances H., Fox, Andrew J., Savage, Blair D., Wakker, Bart P., Krishnarao, Dhanesh, Benjamin, Robert A., Richter, Philipp, Ashley, Trisha, Jenkins, Edward B., Lockman, Felix J., Bordoloi, Rongmon, Kim, Tae-Sun
We report the first direct detection of molecular hydrogen associated with the Galactic nuclear wind. The Far-Ultraviolet Spectroscopic Explorer spectrum of LS 4825, a B1 Ib-II star at $l,b$ = 1.67$^{\circ}$,$-$6.63$^{\circ}$ lying $d$ = 9.9$^{+1.4}_
Externí odkaz:
http://arxiv.org/abs/2112.03335
Autor:
French, David M., Fox, Andrew J., Wakker, Bart P., Norman, Colin, Lehner, Nicolas, Howk, J. Christopher, Savage, Blair D., Richter, Philipp, O'Meara, John, Borthakur, Sanchayeeta, Heckman, Timoth
We present a census of neutral gas in the Milky Way disk and halo down to limiting column densities of $N$(HI)$\sim10^{14}$ cm$^{-2}$ using measurements of HI Lyman-series absorption from the Far Ultraviolet Spectroscopic Explorer (FUSE). Our results
Externí odkaz:
http://arxiv.org/abs/2108.07419
Autor:
Manuwal, Aditya, Narayanan, Anand, Udhwani, Purvi, Srianand, Raghunathan, Savage, Blair D., Charlton, Jane C., Misawa, Toru
Publikováno v:
Monthly Notices of the Royal Astronomical Society 505.3 (2021): 3635-3654
We present here results from a survey of intervening C IV absorbers at $z < 0.16$ conducted using 223 sightlines from the Hubble Spectroscopic Legacy Archive. Most systems (83%) out of the total sample of 69 have simple kinematics with 1 or 2 C IV co
Externí odkaz:
http://arxiv.org/abs/2105.13253
Autor:
Kim, Tae-Sun, Wakker, Bart P., Nasir, Fahad, Carswell, Robert F., Savage, Blair D., Bolton, James S., Fox, Andrew J., Viel, Matteo, Haehnelt, Martin G., Charlton, Jane C., Rosenwasser, Ben E.
We present a new, uniform analysis of the HI transmitted flux (F) and HI column density (N(HI)) distribution in the low-density IGM as a function of redshift z for 0
Externí odkaz:
http://arxiv.org/abs/2012.05861
Autor:
Sankar, Sriram, Narayanan, Anand, Savage, Blair D, Khaire, Vikram, Rosenwasser, Benjamin E, Charlton, Jane, Wakker, Bart P
We present the analysis of five O VI absorbers identified across a redshift path of z $\sim (0.6 - 1.3)$ towards the background quasar PG $1522+101$ with information on five consecutive ionization stages of oxygen from O II to O VI. The combined $HST
Externí odkaz:
http://arxiv.org/abs/2009.03885
Autor:
Ashley, Trisha, Fox, Andrew J., Jenkins, Edward B., Wakker, Bart P., Bordoloi, Rongmon, Lockman, Felix J., Savage, Blair D., Karim, Tanveer
Using new ultraviolet (UV) spectra of five background quasars from the Cosmic Origins Spectrograph on the Hubble Space Telescope, we analyze the low-latitude (|b|=20-30 degree) regions of the Fermi Bubbles, the giant gamma-ray emitting lobes at the G
Externí odkaz:
http://arxiv.org/abs/2006.13254
Autor:
Keeney, Brian A., Stocke, John T., Pratt, Cameron T., Davis, Julie D., Syphers, David, Danforth, Charles W., Shull, J. Michael, Froning, Cynthia S., Green, James C., Penton, Steven V., Savage, Blair D.
Publikováno v:
2018, ApJS, 237, 11
To establish the connection between galaxies and UV-detected absorption systems in the local universe, a deep ($g\leq20$) and wide ($\sim20^{\prime}$ radius) galaxy redshift survey is presented around 47 sight lines to UV-bright AGN observed by the C
Externí odkaz:
http://arxiv.org/abs/1805.08767
Autor:
Karim, Md Tanveer, Fox, Andrew J., Jenkins, Edward B., Bordoloi, Rongmon, Wakker, Bart P., Savage, Blair D., Lockman, Felix J., Crawford, Steven M., Jorgenson, Regina A., Bland-Hawthorn, Joss
The Fermi Bubbles are two giant gamma-ray emitting lobes extending 55$^{\circ}$ above and below the Galactic Center. While the Northern Bubble has been extensively studied in ultraviolet (UV) absorption, little is known about the gas kinematics of th
Externí odkaz:
http://arxiv.org/abs/1804.10617
Autor:
Howk, J. Christopher, Rueff, Katherine M., Lehner, Nicolas, Wotta, Christopher B., Croxall, Kevin, Savage, Blair D.
We present observations of an H$\alpha$ emitting knot in the thick disk of NGC 4013, demonstrating it is an H II region surrounding a cluster of young hot stars $z = 860$ pc above the plane of this edge-on spiral galaxy. With LBT/MODS spectroscopy we
Externí odkaz:
http://arxiv.org/abs/1802.10166