中文
相关论文

相关论文: The FAST Ursa Major supergroup HI survey (FUMaS): …

200 篇论文

We have conducted the first blind HI survey covering 480 deg^2 and a heliocentric velocity range from 300-1900 km/s to investigate the HI content of the nearby spiral-rich Ursa Major region and to look for previously uncatalogued gas-rich…

宇宙学与河外天体物理 · 物理学 2015-06-11 K. Wolfinger , V. A. Kilborn , B. S. Koribalski , R. F. Minchin , P. J. Boyce , M. J. Disney , R. H. Lang , C. A. Jordan

We have used the Five-hundred-meter Aperture Spherical radio Telescope (FAST) to make a blind ultra-deep survey for neutral hydrogen (HI). We present the complete results from the first of six fields (FUDS0). This observation of 95 hours…

星系天体物理 · 物理学 2024-09-11 Hongwei Xi , Bo Peng , Lister Staveley-Smith , Bi-Qing For , Bin Liu , Dejian Ding

A deep blind HI survey of the nearby spiral rich Ursa Major cluster has been performed with the VLA in parallel with a wide-field R-band imaging campaign of most VLA fields with the CFHT. The goal is to measure the slope of the HI mass…

天体物理学 · 物理学 2007-05-23 Marc Verheijen , Neil Trentham , Brent Tully , Martin Zwaan

We determined the HI mass function of galaxies in the Ursa Major association of galaxies using a blind VLA-D array survey, consisting of 54 pointings in a cross pattern, covering the centre as well as the outskirts of the Ursa Major volume.…

星系天体物理 · 物理学 2020-12-08 E. Busekool , M. A. W. Verheijen , J. M. van der Hulst , R. B. Tully , N. Trentham , M. A. Zwaan

We present the HI galaxy observation results of the FATHOMER (FAst neuTral HydrOgen intensity Mapping ExpeRiment), a pilot drift scan survey by the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The survey comprises 28 hours…

星系天体物理 · 物理学 2026-03-23 Shuanghao Shu , Yichao Li , Wenxiu Yang , Jiaxin Wang , Wenkai Hu , Furen Deng , Shifan Zuo , Yougang Wang , Xuelei Chen

The FAST All Sky HI survey (FASHI) is broader in frequency band and sky volume, and deeper in detection sensitivity than the Arecibo Legacy Fast ALFA survey (ALFALFA). To efficiently expand the sample of OH megamasers (OHMs), whose…

星系天体物理 · 物理学 2024-08-14 Chuan-Peng Zhang , Cheng Cheng , Ming Zhu , Jin-Long Xu , Peng Jiang

The FAST All Sky HI survey (FASHI) was designed to cover the entire sky observable by the Five-hundred-meter Aperture Spherical radio Telescope (FAST), spanning approximately 22000 square degrees of declination between -14 deg and +66 deg,…

The FAST Ultra-Deep Survey (FUDS) is a blind survey that aims for the direct detection of HI in galaxies at redshifts $z<0.42$. The survey uses the multibeam receiver on the Five Hundred Meter Aperture Spherical Telescope (FAST) to map six…

星系天体物理 · 物理学 2022-05-04 Hongwei Xi , Bo Peng , Lister Staveley-Smith , Bi-Qing For , Bin Liu

We have conducted an HI 21 cm emission-line survey of six loose groups of galaxies chosen to be analogs to the Local Group. The survey was conducted using the Parkes Multibeam instrument and the Australia Telescope Compact Array (ATCA) over…

宇宙学与河外天体物理 · 物理学 2015-05-30 D. J. Pisano , D. G. Barnes , L. Staveley-Smith , B. K. Gibson , V. A. Kilborn , K. C. Freeman

In this data paper we present the results of an extensive 21cm-line synthesis imaging survey of 43 spiral galaxies in the nearby Ursa Major cluster using the Westerbork Synthesis Radio Telescope. Detailed kinematic information in the form…

天体物理学 · 物理学 2009-11-06 Marc A. W. Verheijen , Renzo Sancisi

We present the ultraviolet, optical and infrared counterparts of 128 galaxies detected in neutral hydrogen (HI) in the FAST Ultra-Deep Survey (FUDS) field 0 (FUDS0). HI mass upper limits are also calculated for 134 non-detections in the…

星系天体物理 · 物理学 2025-03-18 Hongwei Xi , Lister Staveley-Smith , Bo Peng , Bi-Qing For , Bin Liu , Dejian Ding

The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has started the Commensal Radio Astronomy FasT Survey (CRAFTS). In this paper, we use the technical parameters of FAST derived from commissioning observations to simulate the…

In this study, we analyze molecular gas formation in neutral atomic hydrogen (HI) clouds using the latest CO data obtained from the four-beam receiver system on a 45-m telescope (FOREST) unbiased Galactic plane imaging survey with the…

The HI mass function (HIMF) for galaxies in the local universe is constructed from the results of the Arecibo HI Strip Survey, a blind extragalactic survey in the 21cm line. The survey consists of two strips covering in total 65 square…

天体物理学 · 物理学 2009-10-30 Martin Zwaan , Frank Briggs , David Sprayberry , Ertu Sorar

We present measurements of the neutral atomic hydrogen (HI) mass function (HIMF) and cosmic HI density ($\Omega_{\rm HI}$) at $0 \leq z \leq 0.088$ from the Looking at the Distant Universe with MeerKAT Array (LADUMA) survey. Using LADUMA…

We present the first HI mass function (HIMF) measurement for the recent FAST All Sky HI (FASHI) survey and the most complete measurements of HIMF in the local universe thus far. We obtained these results by combining the HI catalogues from…

星系天体物理 · 物理学 2025-03-28 Wenlin Ma , Hong Guo , Haojie Xu , Michael G. Jones , Chuan-Peng Zhang , Ming Zhu , Jing Wang , Jie Wang , Peng Jiang

The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has the largest aperture and a 19-beam L-band receiver, making it powerful for investigating the neutral hydrogen atomic gas (HI) in the universe. We present HiFAST…

We use the catalogue of 4315 extragalactic HI 21-cm emission line detections from HIPASS to calculate the most accurate measurement of the HI mass function (HIMF) of galaxies to date. The completeness of the HIPASS sample is well…

天体物理学 · 物理学 2009-11-10 M. A. Zwaan , M. J. Meyer , L. Staveley-Smith , R. L. Webster

The Arecibo Ultra Deep Survey (AUDS) combines the unique sensitivity of the telescope with the wide field of the Arecibo L-band Feed Array (ALFA) to directly detect 21cm HI emission from galaxies at distances beyond the local Universe…

星系天体物理 · 物理学 2015-08-06 L. Hoppmann , L. Staveley-Smith , W. Freudling , M. A. Zwaan , R. F. Minchin , M. R. Calabretta

We present the first installment of HI sources extracted from the Arecibo Legacy Fast ALFA (ALFALFA) extragalactic survey, initiated in 2005. Sources have been extracted from 3-D spectral data cubes and then examined interactively to yield…

‹ 上一页 1 2 3 10 下一页 ›