Search Results - "Keeney, B. A"

O VI Absorbers Tracing Hot Gas Associated with a Pair of Galaxies at z = 0.167 by Savage, B. D, Narayanan, A, Wakker, B. P, Stocke, J. T, Keeney, B. A, Shull, J. M, Sembach, K. R, Yao, Y, Green, J. C

“…High signal-to-noise observations of the QSO PKS 0405-123 (z {sub em} = 0.572) with the Cosmic Origins Spectrograph from 1134 to 1796 A with a resolution of…”
Get full text

UNRAVELING THE MYSTERIES OF THE LEO RING: AN ABSORPTION LINE STUDY OF AN UNUSUAL GAS CLOUD by Rosenberg, J L, HAISLMAIER, KARL, Giroux, M L, Keeney, B A, Schneider, S E

“…Since the discovery of the large (2 x 10 super(9) M sub([middot in circle])) intergalactic cloud known as the Leo Ring in the 1980s, the origin of this object…”
Get full text

H i 21cm emission from the subdamped Lyman-α absorber at z = 0.0063 towards PG 1216+069 by Chengalur, Jayaram N., Ghosh, T., Salter, C. J., Kanekar, N., Momjian, E., Keeney, B. A., Stocke, J. T.

“…We present H i 21 cm emission observations of the z ∼ 0.006 32 subdamped Lyman-α absorber (sub-DLA) towards PG 1216+069 made using the Arecibo Telescope and…”
Get full text

The Properties and Origin of Kuiper Belt Object Arrokoth's Large Mounds by Stern, S. A., White, O. L., Grundy, W. M., Keeney, B. A., Hofgartner, J. D., Nesvorný, D., McKinnon, W. B., Richardson, D. C., Marohnic, J. C., Verbiscer, A. J., Benecchi, S. D., Schenk, P. M., Moore, J. M.

“…Abstract We report on a study of the mounds that dominate the appearance of Kuiper Belt Object (486958) Arrokoth's larger lobe, named Wenu. We compare the…”
Get full text

Does the Milky Way Produce a Nuclear Galactic Wind? by Keeney, Brian A, Danforth, Charles W, Stocke, John T, Penton, Steven V, Shull, J. Michael, Sembach, Kenneth R

“…We detect high-velocity absorbing gas using Hubble Space Telescope and Far Ultraviolet Spectroscopic Explorer medium-resolution spectroscopy along two…”
Get full text

Absorption-Line Study of Halo Gas in NGC 3067 toward the Background Quasar 3C 232 by Keeney, Brian A, Momjian, Emmanuel, Stocke, John T, Carilli, Chris L, Tumlinson, Jason

“…We present new H I 21 cm absorption data and ultraviolet spectroscopy from Hubble Space Telescope/Space Telescope Imaging Spectrograph of the QSO/galaxy pair…”
Get full text

The Spread of Metals into the Low-Redshift Intergalactic Medium by Pratt, C. T, Stocke, J. T, Keeney, B. A, Danforth, C. W

“…We investigate the association between galaxies and metal-enriched and metal-deficient absorbers in the local universe ($z < 0.16$) using a large compilation…”
Get full text

The Search for MeV Electrons 2-45 AU from the Sun with the Alice Instrument Microchannel Plate Detector Aboard New Horizons by Keeney, B. A, Versteeg, M, Parker, J. Wm, Stern, S. A, Brunts, P, Davis, M. W, Elliott, H. A, Ennico, K, Gladstone, G. R, McNutt,Jr, R. L, Olkin, C. B, Retherford, K. D, Singer, K. N, Spencer, J. R, Steffl, A. J, Weaver, H. A, Young, L. A

“…Research Notes of the AAS, 2020, Volume 4, Number 5 The Alice UV spectrograph aboard NASA's New Horizons mission is sensitive to MeV electrons that penetrate…”
Get full text

Upper Limits for Emissions in the Coma of Comet 67P/Churyumov-Gerasimenko Near Perihelion as Measured by Rosetta's Alice Far-Ultraviolet Spectrograph by Keeney, B. A, Stern, S. A, Vervack,Jr, R. J, Knight, M. M, Noonan, J, Parker, J. Wm, A'Hearn, M. F, Bertaux, J. -L, Feaga, L. M, Feldman, P. D, Medina, R. A, Pineau, J. P, Schindhelm, R. N, Steffl, A. J, Versteeg, M, Weaver, H. A

“…2019, AJ, 158:252 The Alice far-UV imaging spectrograph (700-2050 A) acquired over 70,000 spectral images during Rosetta's 2-year escort mission, including…”
Get full text

Stellar Occultation by Comet 67P/Churyumov-Gerasimenko Observed with Rosetta's Alice Far-Ultraviolet Spectrograph by Keeney, B. A, Stern, S. A, Feldman, P. D, A'Hearn, M. F, Bertaux, J. -L, Feaga, L. M, Knight, M. M, Medina, R. A, Noonan, J, Parker, J. Wm, Pineau, J. P, Schindhelm, R. N, Steffl, A. J, Versteeg, M, Vervack,Jr, R. J, Weaver, H. A

“…Following our previous detection of ubiquitous H2O and O2 absorption against the far-UV continuum of stars located near the nucleus of Comet…”
Get full text

HI 21cm emission from the sub-damped Lyman-alpha absorber at z=0.0063 towards PG1216+069 by Chengalur, Jayaram N, Ghosh, T, Salter, C. J, Kanekar, N, Momjian, E, Keeney, B. A, Stocke, J. T

“…We present HI 21cm emission observations of the z ~ 0.00632 sub-damped Lyman-alpha absorber (sub-DLA) towards PG1216+069 made using the Arecibo Telescope and…”
Get full text

H I 21cm emission from the subdamped Lyman-[alpha] absorber at z = 0.0063 towards PG 1216+069 by Chengalur, Jayaram N, Ghosh, T, Salter, C J, Kanekar, N, Momjian, E, Keeney, B A, Stocke, J T

“…We present H I 21 cm emission observations of the z ~ 0.006 32 subdamped Lyman-α absorber (sub-DLA) towards PG 1216+069 made using the Arecibo Telescope and…”
Get full text

Unravelling the Mysteries of the Leo Ring: An Absorption Line Study of an Unusual Gas Cloud by Rosenberg, J. L, Haislmaier, Karl, Giroux, M. L, Keeney, B. A, Schneider, S. E

“…Since the 1980's discovery of the large (2x10^9 Msun) intergalactic cloud known as the Leo Ring, this object has been the center of a lively debate about its…”
Get full text

The Quasar / Galaxy Pair PKS 1327-206 / ESO 1327-2041: Absorption Associated with a Recent Galaxy Merger by Keeney, B. A, Stocke, J. T, Danforth, C. W, Carilli, C. L

“…The Astronomical Journal 141 66 We present HST/WFPC2 broadband and ground-based Halpha images, H I 21-cm emission maps, and low-resolution optical spectra of…”
Get full text

O VI Absorbers Tracing Hot Gas Associated with a Pair of Galaxies at z = 0.167 by Savage, B. D, Narayanan, A, Wakker, B. P, Stocke, J. T, Keeney, B. A, Shull, J. M, Sembach, K. R, Yao, Y, C, Green, J

“…High signal-to-noise (S/N) observations of the QSO PKS 0405-123 (zem = 0.572) with the Cosmic Origins Spectrograph from 1134 to 1796 A with a resolution of 17…”
Get full text

The Properties and Origins of Kuiper Belt Object Arrokoth's Large Mounds by Stern, S. A, White, O. L, Grundy, Wm, Keeney, B. A, Hofgartner, J. D, Nesvorny, D, McKinnon, W. B, Richardson, D. C, Marohnic, J. C, Verbiscer, A. J, Benecchi, S. D, Schenk, P. M, Moore, J. M

“…We report on a study of the mounds that dominate the appearance of Kuiper Belt Object (KBO) (486958) Arrokoth's larger lobe, named Wenu. We compare the…”
Get full text

Discovery of a Dwarf Poststarburst Galaxy near a High Column Density Local Lyα Absorber by Stocke, John T, Keeney, Brian A, McLin, Kevin M, Rosenberg, Jessica L, Weymann, R. J, Giroux, Mark L

Get full text

Absorption-Line Detections of $10^{5-6}$ K Gas in Spiral-Rich Groups of Galaxies by Stocke, J. T, Keeney, B. A, Danforth, C. W, Syphers, D, Yamamoto, H, Shull, J. M, Green, J. C, Froning, C, Savage, B. D, Wakker, B, Kim, T. -S, Ryan-Weber, E. V, Kacprzak, G. G

“…2014ApJ...791..128S Using the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope (HST) the COS Science Team has conducted a high signal-to-noise…”
Get full text

Linear Gas Dynamics in the Expanding Universe by Gnedin, Nickolay Y, Baker, Emily J, Bethell, Thomas J, Drosback, Meredith M, Harford, A. Gayler, Hicks, Amalia K, Jensen, Adam G, Keeney, Brian A, Kelso, Christopher M, Neyrinck, Mark C, Pollack, Scott E, van Vliet, Timothy P

Get full text

Very Isolated Early-Type Galaxies by Stocke, J. T, Keeney, B. A, Lewis, A. D, Epps, H. W, Schild, R. E

“…Astron.J. 127 (2004) 1336 We use the Karachentseva (1973) ``Catalogue of Very Isolated Galaxies'' to investigate a candidate list of >100 very isolated…”
Get full text