Zobrazeno 1 - 10
of 21
pro vyhledávání: '"William Janesh"'
Autor:
Riccardo Giovanelli, Gyula I. G. Józsa, William Janesh, Lukas Leisman, Elizabeth A. K. Adams, Catherine Ball, John M. Cannon, John J. Salzer, Nicholas J. Smith, Steven Janowiecki, Laurin Gray, Hannah J. Pagel, Martha P. Haynes, Katherine L. Rhode
Publikováno v:
The Astronomical Journal, 162(6):274. IOP PUBLISHING LTD
We present results from deep H i and optical imaging of AGC 229101, an unusual H i source detected at v helio =7116 km s−1 in the Arecibo Legacy Fast ALFA (ALFALFA) blind H i survey. Initially classified as a candidate “dark” source because it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32bb61c03717bff99ebdb1ff4f436aea
https://doi.org/10.3847/1538-3881/ac2a38
https://doi.org/10.3847/1538-3881/ac2a38
Autor:
Constance M. Rockosi, Young Sun Lee, Heather L. Morrison, Brian Yanny, Jennifer A. Johnson, Sara Lucatello, Jennifer Sobeck, Timothy C. Beers, Carlos Allende Prieto, Deokkeun An, Dmitry Bizyaev, Michael R. Blanton, Luca Casagrande, Daniel J. Eisenstein, Andrew Gould, James E. Gunn, Paul Harding, Inese I. Ivans, H. R. Jacobson, William Janesh, Gillian R. Knapp, Juna A. Kollmeier, Sébastien Lépine, Martín López-Corredoira, Zhibo Ma, Heidi J. Newberg, Kaike Pan, Jakub Prchlik, Conor Sayers, Katharine J. Schlesinger, Jennifer Simmerer, David H. Weinberg
Publikováno v:
The Astrophysical Journal Supplement Series. 259:60
The Sloan Extension for Galactic Understanding and Exploration 2 (SEGUE-2) obtained 128,288 low-resolution spectra (R ∼ 1800) of 118,958 unique stars in the first year of the Sloan Digital Sky Survey III (2008–2009). SEGUE-2 targeted prioritized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5397337dd2990c5a98497c82e5008f86
https://doi.org/10.3847/1538-4365/ac5323
https://doi.org/10.3847/1538-4365/ac5323
Autor:
William Janesh, John J. Salzer, Elizabeth A. K. Adams, Katherine L. Rhode, Martha P. Haynes, John M. Cannon, Steven Janowiecki, Riccardo Giovanelli
Publikováno v:
The Astronomical Journal, 157(5):183. IOP PUBLISHING LTD
We present results from the analysis of WIYN pODI imaging of 23 ultra-compact high-velocity clouds (UCHVCs), which were identified in the ALFALFA HI survey as possible dwarf galaxies in or near the Local Group. To search for a resolved stellar popula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aeeac408fcbece3117c8607a812e4e28
Autor:
Samantha W. Brunker, William Janesh, Riccardo Giovanelli, Elizabeth A. K. Adams, John M. Cannon, Gregory Hallenbeck, Michael G. Jones, Martha P. Haynes, Steven Janowiecki, Lukas Leisman, Gyula I. G. Józsa, Kristen B. W. McQuinn, Catherine Ball, Katherine L. Rhode, John J. Salzer
Publikováno v:
The Astronomical Journal, 155(2):65. IOP PUBLISHING LTD
Digital.CSIC. Repositorio Institucional del CSIC
instname
Digital.CSIC. Repositorio Institucional del CSIC
instname
We present new high-resolution H i spectral line imaging of Coma P, the brightest H i source in the system HI 1232+20. This galaxy with extremely low surface brightness was first identified in the ALFALFA survey as an >(Almost) Dark> object: a clearl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd876cffa197d6159b52ac4cce6340cc
http://hdl.handle.net/10261/215858
http://hdl.handle.net/10261/215858
Autor:
Riccardo Giovanelli, Martha P. Haynes, John M. Cannon, John J. Salzer, Steven Janowiecki, Katherine L. Rhode, Elizabeth A. K. Adams, William Janesh
We report on the detection at $>$98% confidence of an optical counterpart to AGC 249525, an Ultra-Compact High Velocity Cloud (UCHVC) discovered by the ALFALFA blind neutral hydrogen survey. UCHVCs are compact, isolated HI clouds with properties cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac324ce492d9e05591fa5686b6da0cfc
http://arxiv.org/abs/1702.07282
http://arxiv.org/abs/1702.07282
Autor:
John J. Salzer, Riccardo Giovanelli, John M. Cannon, Elizabeth A. K. Adams, Steven Janowiecki, William Janesh, Katherine L. Rhode, Ricardo R. Muñoz, Martha P. Haynes
Publikováno v:
Astrophysical Journal
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
We report on initial results from a campaign to obtain optical imaging of a sample of Ultra Compact High Velocity Clouds (UCHVCs) discovered by the ALFALFA neutral hydrogen (HI) survey. UCHVCs are sources with velocities and sizes consistent with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c681a38161ac2f6bee1b60f2646dd57
http://arxiv.org/abs/1508.02730
http://arxiv.org/abs/1508.02730
Autor:
Hans-Walter Rix, Xiang-Xiang Xue, William Janesh, Heather L. Morrison, Jo Bovy, Branimir Sesar, Zhibo Ma
We characterise the radial density, metallicity and flattening profile of the Milky Way's stellar halo, based on the large sample of 1757 spectroscopically confirmed giant stars from SDSS/SEGUE-2 after excising stars that were algorithmically attribu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13ae69a0259d26f6ddfc97b49b804470
Autor:
John J. Salzer, Katherine L. Rhode, David Bernal Neira, Lukas Leisman, John M. Cannon, Martha P. Haynes, William Janesh, Elizabeth A. K. Adams, Steven Janowiecki, Riccardo Giovanelli, Gyula I. G. Józsa, Gregory Hallenbeck
Publikováno v:
The Astrophysical Journal. 842:133
We present a sample of 115 very low optical surface brightness, highly extended, HI-rich galaxies carefully selected from the ALFALFA survey that have similar optical absolute magnitudes, surface brightnesses, and radii to recently discovered "ultra-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07e747e2abb35baba32d725bc2389990
https://doi.org/10.3847/1538-4357/aa7575
https://doi.org/10.3847/1538-4357/aa7575
Autor:
Hans-Walter Rix, Paul Harding, Xiang Xiang Xue, Jennifer A. Johnson, Constance M. Rockosi, Young Sun Lee, Timothy C. Beers, Heather L. Morrison, William Janesh, Else Starkenburg, Zhibo Ma, Donald P. Schneider
Publikováno v:
The Astrophysical Journal. 816:80
We statistically quantify the amount of substructure in the Milky Way stellar halo using a sample of 4568 halo K giant stars at Galactocentric distances ranging over 5-125 kpc. These stars have been selected photometrically and confirmed spectroscopi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48f6ae25331ceec913a75d40f1060a77
https://doi.org/10.3847/0004-637x/816/2/80
https://doi.org/10.3847/0004-637x/816/2/80
Autor:
Riccardo Giovanelli, John J. Salzer, John M. Cannon, Tom Oosterloo, Katherine L. Rhode, Steven Janowiecki, Tayeb Zaidi, L. Leisman, William Janesh, Elizabeth A. K. Adams, Martha P. Haynes
Publikováno v:
Astronomy & Astrophysics. 580:A134
We present Arecibo, GBT, VLA and WIYN/pODI observations of the ALFALFA source AGC 226067. Originally identified as an ultra-compact high velocity cloud and candidate Local Group galaxy, AGC 226067 is spatially and kinematically coincident with the Vi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::486f5a9f63531f7ab879d3c0f852d352
https://doi.org/10.1051/0004-6361/201526857
https://doi.org/10.1051/0004-6361/201526857