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Related papers: ESO 137-001 -- a jellyfish galaxy model

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We investigate the effects of ram pressure on the molecular ISM in the disk of the Coma cluster galaxy NGC 4921, via high resolution CO observations. We present 6" resolution CARMA CO(1-0) observations of the full disk, and 0.4" resolution…

This study uses HI image data from the WALLABY pilot survey with the ASKAP telescope, covering the Hydra cluster out to 2.5$r_{200}$. We present the projected phase-space distribution of HI-detected galaxies in Hydra, and identify that…

Aims: A pilot project has been carried out to measure circumstellar CO emission from three OH/IR stars close to the Galactic centre. The intention was to find out whether it would be possible to conduct a large-scale survey for mass-loss…

Astrophysics of Galaxies · Physics 2009-11-13 A. Winnberg , S. Deguchi , M. J. Reid , J. Nakashima , H. Olofsson , H. J. Habing

We present the discovery of a 70 kpc X-ray tail behind the small late-type galaxy ESO137-001 in the nearby, hot (T=6.5 keV) merging cluster A3627, from both Chandra and XMM observations. The tail has a length-to-width ratio of ~ 10. It is…

Astrophysics · Physics 2009-11-11 M. Sun , C. Jones , W. Forman , P. E. J. Nulsen , M. Donahue , M. Voit

We use a 54.4 ks Chandra observation to study ram-pressure stripping in NGC4552 (M89), an elliptical galaxy in the Virgo Cluster. Chandra images in the 0.5-2 keV band show a sharp leading edge in the surface brightness 3.1 kpc north of the…

Astrophysics · Physics 2009-11-11 M. Machacek , C. Jones , W. R. Forman , P. E. J. Nulsen

We describe and constrain the origins of ISM structures likely created by ongoing ICM ram pressure stripping in two Virgo Cluster spirals, NGC 4522 and NGC 4402, using HST BVI images of dust extinction and stars, as well as supplementary…

Astrophysics of Galaxies · Physics 2016-07-20 A. Abramson , J. Kenney , H. Crowl , T. Tal

Jellyfish galaxies, characterized by long filaments of stripped interstellar medium extending from their disks, are the prime laboratories to study the outcomes of ram pressure stripping. At radio wavelengths, they often show unilateral…

We examine to what extent disk and outflow models can reproduce observations of H I gas within a few virial radii of galaxies in pairs and groups. Using highly-sensitive HST/COS and FOS spectra of the Q0107 quasar triplet covering…

Astrophysics of Galaxies · Physics 2023-03-08 Alexander Beckett , Simon L. Morris , Michele Fumagalli , Nicolas Tejos , Buell Jannuzi , Sebastiano Cantalupo

[Abridged] The detection of the rotational lines of CO in proto-galaxies in the early Universe provides one of the most promising ways of probing the fundamental physical properties of a galaxy, such as its size, dynamical mass, gas…

Astrophysics · Physics 2009-11-11 T. R. Greve , J. Sommer-Larsen

We use 3-dimensional SPH/N-BODY simulations to study ram pressure stripping of gas from spiral galaxies orbiting in clusters. We find that the analytic expectation of Gunn & Gott (1972) relating the gravitational restoring force provided by…

Astrophysics · Physics 2008-11-26 Mario G. Abadi , Ben Moore , Richard G. Bower

Ram pressure stripping of galactic gas is generally assumed to be inefficient in galaxy groups due to the relatively low density of the intragroup medium and the small velocity dispersions of groups. To test this assumption, we obtained…

Astrophysics · Physics 2009-11-11 Jesper Rasmussen , Trevor J. Ponman , John S. Mulchaey

The spatial segregation between dSphs and dIrrs in the Local Group has long been regarded as evidence of an interaction with their host galaxies. In this paper, we assume that ram-pressure stripping is the dominant mechanism that removed…

Astrophysics of Galaxies · Physics 2013-07-01 A. Gatto , F. Fraternali , J. I. Read , F. Marinacci , H. Lux , S. Walch

Ram pressure stripping (RPS) is one of the most invoked mechanisms to explain the observed differences between cluster and field galaxies. In the local Universe, its effect on the galaxy star forming properties has been largely tackled and…

Context. Galaxies fly inside galaxy clusters and ram pressure by the ICM can remove a large amount of the ISM from the galaxy, and deposit the gas in the ICM. The ISM decoupled from the host galaxy leaves a long trail following the moving…

Galaxies undergoing ram-pressure stripping develop gaseous tails that can extend several kiloparsecs outside the galaxy disc. We used far-ultraviolet and H$\alpha$ imaging from the GASP survey to investigate how different stages of…

Wide-field radio continuum observations of galaxy clusters are revealing an increasing number of spiral galaxies hosting tens of kpc-long radio tails produced by the nonthermal interstellar medium being displaced by the ram pressure. We…

Astrophysics of Galaxies · Physics 2023-07-12 A. Ignesti , B. Vulcani , A. Botteon , B. Poggianti , E. Giunchi , R. Smith , G. Brunetti , I. D. Roberts , R. J. van Weeren , K. Rajpurohit

Galaxy evolution can be dramatically affected by the environment, especially by the dense environment of a galaxy cluster. Recent observational studies show that massive galaxies undergoing strong ram pressure stripping (RPS) also show an…

Astrophysics of Galaxies · Physics 2023-05-03 Nina Akerman , Stephanie Tonnesen , Bianca M. Poggianti , Rory Smith , Antonino Marasco

We present the first results of a 21 cm HI line pilot observation carried out with MeerKAT in preparation for the ViCTORIA project, an untargeted survey of the Virgo galaxy cluster. The extraordinary quality of the data in terms of…

Rotation information for spiral galaxies can be obtained through the observation of different spectral lines. While the Halpha(6563 A) line is often used for galaxies with low to moderate redshifts, it is redshifted into the near-infrared…

We investigate the effect of ram-pressure from the intracluster medium on the stripping of HI gas in galaxies in a massive, relaxed, X-ray bright, galaxy cluster at z=0.2 from the Blind Ultra Deep HI Environmental Survey (BUDHIES). We use…

Astrophysics of Galaxies · Physics 2015-06-23 Yara L. Jaffe , Rory Smith , Graeme N. Candlish , Bianca M. Poggianti , Yun-Kyeong Sheen , Marc A. W. Verheijen