The strong transformation of spiral galaxies infalling into massive clusters at z∼ 0.2

L. Cortese; D. Marcillac; J. Richard; H. Bravo-Alfaro; J. P. Kneib; G. Rieke; G. Covone; E. Egami; J. Rigby; O. Czoske; J. Davies

doi:10.1017/S1743921306006041

The strong transformation of spiral galaxies infalling into massive clusters at z∼ 0.2

L. Cortese, D. Marcillac, J. Richard, H. Bravo-Alfaro, J. P. Kneib, G. Rieke, G. Covone, E. Egami, J. Rigby, O. Czoske, J. Davies

Steward Observatory

Research output: Contribution to journal › Article › peer-review

Abstract

We report the discovery of two peculiar galaxies infalling into the lensing clusters of galaxies Abell 1689 (z∼ 0.18) and 2667 (z∼ 0.23). Hubble Space Telescope images show extraordinary trails composed by blue bright knots and stellar streams associated with both these systems, an ∼L* and ∼0.1L* galaxy. Under the combined action of tidal interaction with the cluster potential and of ram pressure by the intra-cluster medium the morphologies and star formation histories of these two galaxies are strongly perturbed. While in the massive system tidal interactions are the dominant effect and are able to produce a sinking of gas towards the galaxy center triggering a strong burst of star formation and changing galaxy's morphology, in the smaller galaxy the effects of gravitation are reduced by ram pressure stripping which blows away the neutral hydrogen from the galactic disk, quenching the star formation activity and transforming a gas rich late type spiral into quiescent disk dominated early type system. This result is a new additional evidence that galaxy mass represents the main driver of galaxy evolution, even during their dive into the harsh cluster environment and can give additional insights on the origin of S0s and dwarf cluster galaxies.

Original language	English (US)
Pages (from-to)	198
Number of pages	1
Journal	Proceedings of the International Astronomical Union
Volume	2
Issue number	S235
DOIs	https://doi.org/10.1017/S1743921306006041
State	Published - Aug 2006

Keywords

Galaxies:clusters:individual:(A1689,A2667)galaxies:evolutiongalaxies: interactions

ASJC Scopus subject areas

Medicine (miscellaneous)
Astronomy and Astrophysics
Nutrition and Dietetics
Public Health, Environmental and Occupational Health
Space and Planetary Science

Access to Document

10.1017/S1743921306006041

Fingerprint Dive into the research topics of 'The strong transformation of spiral galaxies infalling into massive clusters at z∼ 0.2'. Together they form a unique fingerprint.

Cite this

The strong transformation of spiral galaxies infalling into massive clusters at z∼ 0.2. / Cortese, L.; Marcillac, D.; Richard, J.; Bravo-Alfaro, H.; Kneib, J. P.; Rieke, G.; Covone, G.; Egami, E.; Rigby, J.; Czoske, O.; Davies, J.

In: Proceedings of the International Astronomical Union, Vol. 2, No. S235, 08.2006, p. 198.

Research output: Contribution to journal › Article › peer-review

@article{5539c1cf74c2450086a6d101dc5db1ee,

title = "The strong transformation of spiral galaxies infalling into massive clusters at z∼ 0.2",

abstract = "We report the discovery of two peculiar galaxies infalling into the lensing clusters of galaxies Abell 1689 (z∼ 0.18) and 2667 (z∼ 0.23). Hubble Space Telescope images show extraordinary trails composed by blue bright knots and stellar streams associated with both these systems, an ∼L* and ∼0.1L* galaxy. Under the combined action of tidal interaction with the cluster potential and of ram pressure by the intra-cluster medium the morphologies and star formation histories of these two galaxies are strongly perturbed. While in the massive system tidal interactions are the dominant effect and are able to produce a sinking of gas towards the galaxy center triggering a strong burst of star formation and changing galaxy's morphology, in the smaller galaxy the effects of gravitation are reduced by ram pressure stripping which blows away the neutral hydrogen from the galactic disk, quenching the star formation activity and transforming a gas rich late type spiral into quiescent disk dominated early type system. This result is a new additional evidence that galaxy mass represents the main driver of galaxy evolution, even during their dive into the harsh cluster environment and can give additional insights on the origin of S0s and dwarf cluster galaxies.",

keywords = "Galaxies:clusters:individual:(A1689,A2667)galaxies:evolutiongalaxies: interactions",

author = "L. Cortese and D. Marcillac and J. Richard and H. Bravo-Alfaro and Kneib, {J. P.} and G. Rieke and G. Covone and E. Egami and J. Rigby and O. Czoske and J. Davies",

year = "2006",

month = aug,

doi = "10.1017/S1743921306006041",

language = "English (US)",

volume = "2",

pages = "198",

journal = "Proceedings of the International Astronomical Union",

issn = "1743-9213",

publisher = "Cambridge University Press",

number = "S235",

}

TY - JOUR

T1 - The strong transformation of spiral galaxies infalling into massive clusters at z∼ 0.2

AU - Cortese, L.

AU - Marcillac, D.

AU - Richard, J.

AU - Bravo-Alfaro, H.

AU - Kneib, J. P.

AU - Rieke, G.

AU - Covone, G.

AU - Egami, E.

AU - Rigby, J.

AU - Czoske, O.

AU - Davies, J.

PY - 2006/8

Y1 - 2006/8

N2 - We report the discovery of two peculiar galaxies infalling into the lensing clusters of galaxies Abell 1689 (z∼ 0.18) and 2667 (z∼ 0.23). Hubble Space Telescope images show extraordinary trails composed by blue bright knots and stellar streams associated with both these systems, an ∼L* and ∼0.1L* galaxy. Under the combined action of tidal interaction with the cluster potential and of ram pressure by the intra-cluster medium the morphologies and star formation histories of these two galaxies are strongly perturbed. While in the massive system tidal interactions are the dominant effect and are able to produce a sinking of gas towards the galaxy center triggering a strong burst of star formation and changing galaxy's morphology, in the smaller galaxy the effects of gravitation are reduced by ram pressure stripping which blows away the neutral hydrogen from the galactic disk, quenching the star formation activity and transforming a gas rich late type spiral into quiescent disk dominated early type system. This result is a new additional evidence that galaxy mass represents the main driver of galaxy evolution, even during their dive into the harsh cluster environment and can give additional insights on the origin of S0s and dwarf cluster galaxies.

AB - We report the discovery of two peculiar galaxies infalling into the lensing clusters of galaxies Abell 1689 (z∼ 0.18) and 2667 (z∼ 0.23). Hubble Space Telescope images show extraordinary trails composed by blue bright knots and stellar streams associated with both these systems, an ∼L* and ∼0.1L* galaxy. Under the combined action of tidal interaction with the cluster potential and of ram pressure by the intra-cluster medium the morphologies and star formation histories of these two galaxies are strongly perturbed. While in the massive system tidal interactions are the dominant effect and are able to produce a sinking of gas towards the galaxy center triggering a strong burst of star formation and changing galaxy's morphology, in the smaller galaxy the effects of gravitation are reduced by ram pressure stripping which blows away the neutral hydrogen from the galactic disk, quenching the star formation activity and transforming a gas rich late type spiral into quiescent disk dominated early type system. This result is a new additional evidence that galaxy mass represents the main driver of galaxy evolution, even during their dive into the harsh cluster environment and can give additional insights on the origin of S0s and dwarf cluster galaxies.

KW - Galaxies:clusters:individual:(A1689,A2667)galaxies:evolutiongalaxies: interactions

UR - http://www.scopus.com/inward/record.url?scp=36948999647&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36948999647&partnerID=8YFLogxK

U2 - 10.1017/S1743921306006041

DO - 10.1017/S1743921306006041

M3 - Article

AN - SCOPUS:36948999647

VL - 2

SP - 198

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

SN - 1743-9213

IS - S235

ER -