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Related papers: Pre-peak ram pressure stripping in the Virgo clust…

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We present new HI (20" resolution) and CO observations of NGC 4548, an anemic galaxy in the Virgo cluster. The atomic gas distribution shows a ring structure which is distorted at the northern edge. The overall rotation curve is derived…

Astrophysics · Physics 2007-05-23 B. Vollmer , V. Cayatte , A. Boselli , C. Balkowski , W. J. Duschl

We report on high-resolution interferometer observations of the 12CO(J=1-0) emission in the central 5 kpc region of the Seyfert 2 galaxy NGC 4501. The observations were made using the Nobeyama Millimeter Array during a long-term CO line…

Astrophysics · Physics 2015-06-24 Sachiko Onodera , Jin Koda , Yoshiaki Sofue , Kotaro Kohno

We obtained using MegaCam at the CFHT a deep narrow band Halpha+[NII] wide field image of NGC 4569, the brightest late-type galaxy in the Virgo cluster. The image reveals the presence of long tails of diffuse ionised gas without any…

Deep Effelsberg 100-m HI observations of 5 HI deficient Virgo spiral galaxies are presented. No new extended HI tail is found in these galaxies. The already known HI tail north of NGC 4388 does not significantly extend further than a WSRT…

Astrophysics · Physics 2009-11-11 B. Vollmer , W. Huchtmeier

We report the detection of an X-ray absorption feature near the galaxy M86 in the Virgo cluster. The absorber has a column density of 2-3 E20 /cm^2, and its position coincides with the peak of an intracluster HI cloud which was removed from…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Liyi Gu , Masafumi Yagi , Kazuhiro Nakazawa , Michitoshi Yoshida , Yutaka Fujita , Takashi Hattori , Takuya Akahori , Kazuo Makishima

Deep scaled array VLA 20 and 6cm observations including polarization of 19 Virgo spirals are presented. This sample contains 6 galaxies with a global minimum of 20cm polarized emission at the receding side of the galactic disk and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 B. Vollmer , M. Soida , R. Beck , A. Chung , M. Urbanik , K. T. Chyzy , K. Otmianowska-Mazur , J. D. P. Kenney

We study the IB(s)m galaxy IC 3476 observed in the context of VESTIGE, a blind narrow-band Halpha+[NII] imaging survey of the Virgo cluster. The deep narrow-band (NB) image reveals a very pertubed ionised gas distribution, characterised by…

We discuss HI and optical evidence for ongoing ICM-ISM interactions in 6 HI-deficient Virgo cluster spiral galaxies. One of the clearest cases is the highly inclined Virgo galaxy NGC 4522, which has a normal stellar disk but a truncated gas…

Astrophysics · Physics 2007-05-23 Jeffrey D. P. Kenney , Hugh Crowl , Jacqueline van Gorkom , Bernd Vollmer

Remarkable dust extinction features in the deep HST V and I images of the face-on Coma cluster spiral galaxy NGC 4921 show in unprecedented ways how ram pressure strips the ISM from the disk of a spiral galaxy. New VLA HI maps show a…

Astrophysics of Galaxies · Physics 2015-08-06 Jeffrey D. P. Kenney , Anne Abramson , Hector Bravo-Alfaro

The influence of the environment on the polarized and total power radio continuum emission of cluster spiral galaxies is investigated. We present deep scaled array VLA 20 and 6 cm observations including polarization of 8 Virgo spiral…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 B. Vollmer , M. Soida , A. Chung , R. Beck , M. Urbanik , K. T. Chyzy , K. Otmianowska-Mazur , J. H. van Gorkom

We investigate the presence of shock-excited H2 in four Virgo cluster galaxies that show clear evidence of ongoing ram pressure stripping. Mid-infrared (MIR) spectral mapping of the rotational H2 emission lines were performed using the…

Astrophysics of Galaxies · Physics 2014-03-05 O. Ivy Wong , Jeffrey D. P. Kenney , Eric J. Murphy , George Helou

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

We use the Spitzer Infrared Spectrograph (IRS) to study four infalling cluster galaxies with signatures of on-going ram-pressure stripping. H$_2$ emission is detected in all four; two show extraplanar H$_2$ emission. The emission usually…

Astrophysics of Galaxies · Physics 2015-06-23 Suresh Sivanandam , Marcia J. Rieke , George H. Rieke

NGC 4330 is one of the Virgo galaxies whose UV distribution shows a tail structure. An associated tail structure is also observed in the HI and H$\alpha$ emission distributions. Previous dynamical modeling showed that the galaxy is…

Astrophysics of Galaxies · Physics 2021-02-03 B. Vollmer , M. Fossati , A. Boselli , M. Soida , S. Gwyn , J. C. Cuillandre , Ph. Amram , S. Boissier , M. Boquien , G. Hensler

We study the case of a bright (L>L*) barred spiral galaxy from the rich cluster A3558 in the Shapley supercluster core (z=0.05) undergoing ram-pressure stripping. Integral-field spectroscopy, complemented by multi-band imaging, allows us to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 P. Merluzzi , G. Busarello , M. A. Dopita , C. P. Haines , D. Steinhauser , A. Mercurio , A. Rifatto , R. J. Smith , S. Schindler

The Virgo cluster spiral galaxy NGC 4654 is supposed to be a good candidate for ongoing ram pressure stripping based on its very asymmetric HI distribution. However, this galaxy also shows an asymmetric stellar distribution. Numerical…

Astrophysics · Physics 2009-11-07 B. Vollmer

We have observed the late-type peculiar galaxy NGC 4424 during VESTIGE, a blind narrow-band Halpha[NII] imaging survey of the Virgo cluster carried out with MegaCam at the CFHT. The presence of a 110 kpc long HI tail in the S direction…

In a new HI imaging survey of Virgo galaxies (VIVA: VLA Imaging of Virgo galaxies in Atomic gas), we find 7 spiral galaxies with long HI tails. The morphology varies but all the tails are extended well beyond the optical radii on one side.…

Astrophysics · Physics 2010-11-04 Aeree Chung , J. H. van Gorkom , Jeffrey D. P. Kenney , Bernd Vollmer

We present 12CO (2-1) data of three Virgo spirals - NGC 4330, NGC 4402 and NGC 4522 obtained using the Submillimeter Array. These three galaxies show clear evidence of ram pressure stripping due to the cluster medium as found in previous HI…

We study galaxies undergoing ram pressure stripping in the Virgo cluster to examine whether we can identify any discernible trend in their star formation activity. We first use 48 galaxies undergoing different stages of stripping based on…

Astrophysics of Galaxies · Physics 2021-03-25 Jae Yeon Mun , Ho Seong Hwang , Myung Gyoon Lee , Aeree Chung , Hyein Yoon , Jong Chul Lee