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Related papers: HI Deficiencies and Asymmetries in HIPASS Galaxies

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We present new multi-wavelength scaling relations between the neutral hydrogen content (HI) and the stellar properties of nearby galaxies selected from the HI Parkes All-Sky Survey (HIPASS). We use these new scaling relations to investigate…

Astrophysics of Galaxies · Physics 2015-06-22 Helga Dénes , Virginia A. Kilborn , Bärbel S. Koribalski

Observations show that galaxies in galaxy clusters are strongly influenced by their environment. There is growing evidence that some galaxies in groups show similar properties to galaxies in clusters, such as redder colours and gas…

Astrophysics of Galaxies · Physics 2014-06-19 Helga Dénes , Virginia A. Kilborn , Bärbel S. Koribalski

We present an analysis of morphological, kinematic and spectral asymmetries in observations of atomic neutral hydrogen (HI) gas from the Local Volume HI Survey (LVHIS), the VLA Imaging of Virgo in Atomic Gas (VIVA) survey and the Hydrogen…

Astrophysics of Galaxies · Physics 2020-03-11 T. N. Reynolds , T. Westmeier , L. Staveley-Smith , G. Chauhan , C. D. P. Lagos

Observations show that spiral galaxies in galaxy clusters tend to have on average less neutral hydrogen (HI) than galaxies of the same type and size in the field. There is accumulating evidence that such HI-deficient galaxies are also…

Astrophysics of Galaxies · Physics 2015-11-18 Helga Denes , Virginia A. Kilborn , Baerbel S. Koribalski , O. Ivy Wong

Observations have revealed that disturbances in the cold neutral atomic hydrogen (HI) in galaxies are ubiquitous, but the reasons for these disturbances remain unclear. While some studies suggest that asymmetries in integrated HI spectra…

Astrophysics of Galaxies · Physics 2021-04-21 Adam B. Watts , Barbara Catinella , Luca Cortese , Chris Power , Sara L. Ellison

We present an analysis of asymmetries in global HI spectra from the extended GALEX Arecibo SDSS Survey (xGASS), a stellar mass-selected and gas fraction-limited survey which is representative of the HI properties of galaxies in the local…

Astrophysics of Galaxies · Physics 2020-01-22 Adam B. Watts , Barbara Catinella , Luca Cortese , Chris Power

We present results from an HI counterpart search using the HI Parkes All Sky Survey (HIPASS) for a sample of low surface brightness galaxies (LSBGs) and ultradiffuse galaxies (UDGs) identified from the Dark Energy Survey (DES). We aimed to…

Astrophysics of Galaxies · Physics 2022-08-31 Yun-Fan Zhou , Chandreyee Sengupta , Yogesh Chandola , O. Ivy Wong , Tom C. Scott , Yin-Zhe Ma , Hao Chen

We derive the atomic hydrogen content for a total of 1900 spirals in the fields of eighteen nearby clusters. By comparing the HI deficiency distributions of the galaxies inside of and outside of one Abell radius of each cluster, we find…

Observations of the neutral atomic hydrogen (HI) gas in galaxies are predominantly spatially unresolved, in the form of a global HI spectral line. There has been substantial work on quantifying asymmetry in global HI spectra (`global HI…

The morphology and kinematics of atomic Hydrogen (HI) gas in galaxies are influenced by both local and large scale cosmic environments. Differences in galaxy environment and interactions can leave distinct signatures in HI asymmetry,…

Astrophysics of Galaxies · Physics 2025-08-05 P. V. Bilimogga , E. Busekool , M. A. W. Verheijen , J. M. van der Hulst

Studying the atomic gas (HI) properties of the most isolated galaxies is essential to quantify the effect that the environment exerts on this sensitive component of the interstellar medium. We observed and compiled HI data for a well…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-16 D. Espada , L. Verdes-Montenegro , E. Athanassoula , A. Bosma , W. K. Huchtmeier , S. Leon , U. Lisenfeld , J. Sabater , J. Sulentic , S. Verley , M. Yun

Using data taken as part of the Bluedisk project we study the connection between neutral hydrogen (HI) in the environment of spiral galaxies and that in the galaxies themselves. We measure the total HI mass present in the environment in a…

We introduce a new photometric estimator of the HI mass fraction (M_HI/M_*) in local galaxies, which is a linear combination of four parameters: stellar mass, stellar surface mass density, NUV-r colour, and g-i colour gradient. It is…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Cheng Li , Guinevere Kauffmann , Jian Fu , Jing Wang , Barbara Catinella , Silvia Fabello , David Schiminovich , Wei Zhang

We investigate the atomic gas (HI) content of galaxies in groups using early data from the FAST All Sky HI survey (FASHI). Taking advantage of FAST's blind, wide-area coverage and uniform sensitivity, we assemble a sample of $230$ group…

Astrophysics of Galaxies · Physics 2026-01-29 Shulan Yan , Andrew Ma , Qingzheng Yu , Taotao Fang , Chuan He , Ming Zhu

We have analyzed the total HI contents of 72 Hickson compact groups of galaxies (HCGs) and the detailed spatial distributions and kinematics of HI within a subset of 16 groups using the high angular resolution observations obtained with the…

Astrophysics · Physics 2009-11-07 L. Verdes-Montenegro , M. S. Yun , B. A. Williams , W. K. Huchtmeier , A. Del Olmo , J. Perea

We investigate the neutral hydrogen (HI) content of sixteen groups for which we have multi-wavelength data including X-ray observations. Wide-field imaging of the groups was obtained with the 20-cm multibeam system on the 64-m Parkes…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Virginia A. Kilborn , Duncan A. Forbes , David G. Barnes , Baerbel S. Koribalski , Sarah Brough , Katie Kern

We analyze cold-gas distributions in Virgo cluster galaxies using resolved CO(2-1) (tracing molecular hydrogen, H2) and HI observations from the Virgo Environment Traced In CO (VERTICO) and the VLA Imaging of Virgo in Atomic Gas (VIVA)…

Using the Parkes radio telescope, we study the 21cm neutral hydrogen (HI) properties of a sample of galaxies with redshifts z<0.13 extracted from the optical 2dF Galaxy Redshift Survey (2dFGRS). Galaxies at 0.04<z<0.13 are studied using new…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-24 Jacinta Delhaize , Martin Meyer , Lister Staveley-Smith , Brian Boyle

(abridged) Measures of the HI properties of a galaxy are among the most sensitive interaction diagnostic at our disposal. We report here on a study of HI profile asymmetries (e.g., lopsidedness) in a sample of some of the most isolated…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 D. Espada , L. Verdes-Montenegro , W. K. Huchtmeier , J. Sulentic , S. Verley , S. Leon , J. Sabater

The HI content of galaxies in the Eridanus group is studied using the GMRT observations and the HIPASS data. A significant HI deficiency up to a factor of 2-3 is observed in galaxies in the high galaxy density regions. The HI deficiency in…

Astrophysics · Physics 2009-11-10 A. Omar , K. S. Dwarakanath
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