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Destruction of molecular gas resevoirs in early-type galaxies by active galactic nucleus feedback

Research output: Contribution to journalArticle

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Destruction of molecular gas resevoirs in early-type galaxies by active galactic nucleus feedback. / Schawinski, K.; Lintott, C.; Thomas, Daniel; Kaviraj, S.; Viti, S.; Silk, J.; Maraston, Claudia.

In: The Astrophysical Journal, Vol. 690, No. 2, 2009, p. 1672-1680.

Research output: Contribution to journalArticle

Harvard

Schawinski, K, Lintott, C, Thomas, D, Kaviraj, S, Viti, S, Silk, J & Maraston, C 2009, 'Destruction of molecular gas resevoirs in early-type galaxies by active galactic nucleus feedback', The Astrophysical Journal, vol. 690, no. 2, pp. 1672-1680. https://doi.org/10.1088/0004-637X/690/2/1672

APA

Schawinski, K., Lintott, C., Thomas, D., Kaviraj, S., Viti, S., Silk, J., & Maraston, C. (2009). Destruction of molecular gas resevoirs in early-type galaxies by active galactic nucleus feedback. The Astrophysical Journal, 690(2), 1672-1680. https://doi.org/10.1088/0004-637X/690/2/1672

Vancouver

Schawinski K, Lintott C, Thomas D, Kaviraj S, Viti S, Silk J et al. Destruction of molecular gas resevoirs in early-type galaxies by active galactic nucleus feedback. The Astrophysical Journal. 2009;690(2):1672-1680. https://doi.org/10.1088/0004-637X/690/2/1672

Author

Schawinski, K. ; Lintott, C. ; Thomas, Daniel ; Kaviraj, S. ; Viti, S. ; Silk, J. ; Maraston, Claudia. / Destruction of molecular gas resevoirs in early-type galaxies by active galactic nucleus feedback. In: The Astrophysical Journal. 2009 ; Vol. 690, No. 2. pp. 1672-1680.

Bibtex

@article{491a30bec3b14708b73105f9e8c62032,
title = "Destruction of molecular gas resevoirs in early-type galaxies by active galactic nucleus feedback",
abstract = "Residual star formation at late times in early-type galaxies and their progenitors must be suppressed in order to explain the population of red, passively evolving systems we see today. Likewise, residual or newly accreted reservoirs of molecular gas that are fueling star formation must be destroyed. This suppression of star formation in early-type galaxies is now commonly attributed to active galactic nucleus (AGN) feedback wherein the reservoir of gas is heated and expelled during a phase of accretion onto the central supermassive black hole. However, direct observational evidence for a link between the destruction of this molecular gas and an AGN phase has been missing so far. We present new mm-wavelength observations from the IRAM 30 m telescope of a sample of low-redshift SDSS early-type galaxies currently undergoing this process of quenching of late-time star formation. Our observations show that the disappearance of the molecular gas coincides within less than 100 Myr with the onset of accretion onto the black hole and is too rapid to be due to star formation alone. Since our sample galaxies are not associated to powerful quasar activity or radio jets, we conclude that low-luminosity AGN episodes are sufficient to suppress residual star formation in early-type galaxies. This {"}suppression mode{"} of AGN feedback is very different from the {"}truncation mode{"} linked to powerful quasar activity during early phases of galaxy formation.",
author = "K. Schawinski and C. Lintott and Daniel Thomas and S. Kaviraj and S. Viti and J. Silk and Claudia Maraston",
year = "2009",
doi = "10.1088/0004-637X/690/2/1672",
language = "English",
volume = "690",
pages = "1672--1680",
journal = "The Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing",
number = "2",

}

RIS

TY - JOUR

T1 - Destruction of molecular gas resevoirs in early-type galaxies by active galactic nucleus feedback

AU - Schawinski, K.

AU - Lintott, C.

AU - Thomas, Daniel

AU - Kaviraj, S.

AU - Viti, S.

AU - Silk, J.

AU - Maraston, Claudia

PY - 2009

Y1 - 2009

N2 - Residual star formation at late times in early-type galaxies and their progenitors must be suppressed in order to explain the population of red, passively evolving systems we see today. Likewise, residual or newly accreted reservoirs of molecular gas that are fueling star formation must be destroyed. This suppression of star formation in early-type galaxies is now commonly attributed to active galactic nucleus (AGN) feedback wherein the reservoir of gas is heated and expelled during a phase of accretion onto the central supermassive black hole. However, direct observational evidence for a link between the destruction of this molecular gas and an AGN phase has been missing so far. We present new mm-wavelength observations from the IRAM 30 m telescope of a sample of low-redshift SDSS early-type galaxies currently undergoing this process of quenching of late-time star formation. Our observations show that the disappearance of the molecular gas coincides within less than 100 Myr with the onset of accretion onto the black hole and is too rapid to be due to star formation alone. Since our sample galaxies are not associated to powerful quasar activity or radio jets, we conclude that low-luminosity AGN episodes are sufficient to suppress residual star formation in early-type galaxies. This "suppression mode" of AGN feedback is very different from the "truncation mode" linked to powerful quasar activity during early phases of galaxy formation.

AB - Residual star formation at late times in early-type galaxies and their progenitors must be suppressed in order to explain the population of red, passively evolving systems we see today. Likewise, residual or newly accreted reservoirs of molecular gas that are fueling star formation must be destroyed. This suppression of star formation in early-type galaxies is now commonly attributed to active galactic nucleus (AGN) feedback wherein the reservoir of gas is heated and expelled during a phase of accretion onto the central supermassive black hole. However, direct observational evidence for a link between the destruction of this molecular gas and an AGN phase has been missing so far. We present new mm-wavelength observations from the IRAM 30 m telescope of a sample of low-redshift SDSS early-type galaxies currently undergoing this process of quenching of late-time star formation. Our observations show that the disappearance of the molecular gas coincides within less than 100 Myr with the onset of accretion onto the black hole and is too rapid to be due to star formation alone. Since our sample galaxies are not associated to powerful quasar activity or radio jets, we conclude that low-luminosity AGN episodes are sufficient to suppress residual star formation in early-type galaxies. This "suppression mode" of AGN feedback is very different from the "truncation mode" linked to powerful quasar activity during early phases of galaxy formation.

U2 - 10.1088/0004-637X/690/2/1672

DO - 10.1088/0004-637X/690/2/1672

M3 - Article

VL - 690

SP - 1672

EP - 1680

JO - The Astrophysical Journal

JF - The Astrophysical Journal

SN - 0004-637X

IS - 2

ER -

ID: 69980