PKS B1740-517: an ALMA view of the cold gas feeding a distant interacting young radio galaxy

J. R. Allison; E. K. Mahony; V. A. Moss; E. M. Sadler; M. T. Whiting; R. F. Allison; J. Bland-Hawthorn; S. J. Curran; B. H. C. Emonts; C. D. P. Lagos; R. Morganti; G. Tremblay; M. Zwaan; C. S. Anderson; J. D. Bunton; M. A. Voronkov

doi:10.1093/mnras/sty2852

PKS B1740-517: an ALMA view of the cold gas feeding a distant interacting young radio galaxy

J. R. Allison, E. K. Mahony, V. A. Moss, E. M. Sadler, M. T. Whiting, R. F. Allison, J. Bland-Hawthorn, S. J. Curran, B. H. C. Emonts, C. D. P. Lagos, R. Morganti, G. Tremblay, M. Zwaan, C. S. Anderson, J. D. Bunton, M. A. Voronkov

International Centre for Radio Astronomy Research (ICRAR)

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Abstract

Cold neutral gas is a key ingredient for growing the stellar and central black hole mass in galaxies throughout cosmic history. We have used the Atacama Large Millimetre Array to detect a rare example of redshifted (CO)-C-12 (2-1) absorption in PKS B1740-517, a young (t similar to 1.6 x 10(3) yr) and luminous (L-5GH approximate to 6.6 x 10(43) erg s(-1)) radio galaxy at z = 0.44 that is undergoing a tidal interaction with at least one lower mass companion. The coincident H I 21-cm and molecular absorption have very similar line profiles and reveal a reservoir of cold gas (M-gas similar to 10(7) -10(8) M-circle dot), likely distributed in a disc or ring within a few kiloparsecs of the nucleus. A separate HI component is kinematically distinct and has a very narrow line width (Delta u(FWHM)

Original language	English
Pages (from-to)	2934-2949
Number of pages	16
Journal	Monthly Notices of the Royal Astronomical Society
Volume	482
Issue number	3
DOIs	https://doi.org/10.1093/mnras/sty2852
Publication status	Published - Jan 2019

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Allison, J. R., Mahony, E. K., Moss, V. A., Sadler, E. M., Whiting, M. T., Allison, R. F., Bland-Hawthorn, J., Curran, S. J., Emonts, B. H. C., Lagos, C. D. P., Morganti, R., Tremblay, G., Zwaan, M., Anderson, C. S., Bunton, J. D., & Voronkov, M. A. (2019). PKS B1740-517: an ALMA view of the cold gas feeding a distant interacting young radio galaxy. Monthly Notices of the Royal Astronomical Society, 482(3), 2934-2949. https://doi.org/10.1093/mnras/sty2852

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title = "PKS B1740-517: an ALMA view of the cold gas feeding a distant interacting young radio galaxy",

abstract = "Cold neutral gas is a key ingredient for growing the stellar and central black hole mass in galaxies throughout cosmic history. We have used the Atacama Large Millimetre Array to detect a rare example of redshifted (CO)-C-12 (2-1) absorption in PKS B1740-517, a young (t similar to 1.6 x 10(3) yr) and luminous (L-5GH approximate to 6.6 x 10(43) erg s(-1)) radio galaxy at z = 0.44 that is undergoing a tidal interaction with at least one lower mass companion. The coincident H I 21-cm and molecular absorption have very similar line profiles and reveal a reservoir of cold gas (M-gas similar to 10(7) -10(8) M-circle dot), likely distributed in a disc or ring within a few kiloparsecs of the nucleus. A separate HI component is kinematically distinct and has a very narrow line width (Delta u(FWHM)",

keywords = "galaxies: evolution, galaxies: high redshift, galaxies: ISM, galaxies: structure, radio lines: galaxies, 21 CM ABSORPTION, SUPERMASSIVE BLACK-HOLES, ACTIVE GALACTIC NUCLEI, COMPACT STEEP-SPECTRUM, ELECTRON MASS-RATIO, DIGITAL SKY SURVEY, H I GAS, MOLECULAR GAS, STAR-FORMATION, GRAVITATIONAL LENS",

author = "Allison, {J. R.} and Mahony, {E. K.} and Moss, {V. A.} and Sadler, {E. M.} and Whiting, {M. T.} and Allison, {R. F.} and J. Bland-Hawthorn and Curran, {S. J.} and Emonts, {B. H. C.} and Lagos, {C. D. P.} and R. Morganti and G. Tremblay and M. Zwaan and Anderson, {C. S.} and Bunton, {J. D.} and Voronkov, {M. A.}",

year = "2019",

month = jan,

doi = "10.1093/mnras/sty2852",

language = "English",

volume = "482",

pages = "2934--2949",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

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Allison, JR, Mahony, EK, Moss, VA, Sadler, EM, Whiting, MT, Allison, RF, Bland-Hawthorn, J, Curran, SJ, Emonts, BHC, Lagos, CDP, Morganti, R, Tremblay, G, Zwaan, M, Anderson, CS, Bunton, JD & Voronkov, MA 2019, 'PKS B1740-517: an ALMA view of the cold gas feeding a distant interacting young radio galaxy', Monthly Notices of the Royal Astronomical Society, vol. 482, no. 3, pp. 2934-2949. https://doi.org/10.1093/mnras/sty2852

TY - JOUR

T1 - PKS B1740-517

T2 - an ALMA view of the cold gas feeding a distant interacting young radio galaxy

AU - Allison, J. R.

AU - Mahony, E. K.

AU - Moss, V. A.

AU - Sadler, E. M.

AU - Whiting, M. T.

AU - Allison, R. F.

AU - Bland-Hawthorn, J.

AU - Curran, S. J.

AU - Emonts, B. H. C.

AU - Lagos, C. D. P.

AU - Morganti, R.

AU - Tremblay, G.

AU - Zwaan, M.

AU - Anderson, C. S.

AU - Bunton, J. D.

AU - Voronkov, M. A.

PY - 2019/1

Y1 - 2019/1

N2 - Cold neutral gas is a key ingredient for growing the stellar and central black hole mass in galaxies throughout cosmic history. We have used the Atacama Large Millimetre Array to detect a rare example of redshifted (CO)-C-12 (2-1) absorption in PKS B1740-517, a young (t similar to 1.6 x 10(3) yr) and luminous (L-5GH approximate to 6.6 x 10(43) erg s(-1)) radio galaxy at z = 0.44 that is undergoing a tidal interaction with at least one lower mass companion. The coincident H I 21-cm and molecular absorption have very similar line profiles and reveal a reservoir of cold gas (M-gas similar to 10(7) -10(8) M-circle dot), likely distributed in a disc or ring within a few kiloparsecs of the nucleus. A separate HI component is kinematically distinct and has a very narrow line width (Delta u(FWHM)

AB - Cold neutral gas is a key ingredient for growing the stellar and central black hole mass in galaxies throughout cosmic history. We have used the Atacama Large Millimetre Array to detect a rare example of redshifted (CO)-C-12 (2-1) absorption in PKS B1740-517, a young (t similar to 1.6 x 10(3) yr) and luminous (L-5GH approximate to 6.6 x 10(43) erg s(-1)) radio galaxy at z = 0.44 that is undergoing a tidal interaction with at least one lower mass companion. The coincident H I 21-cm and molecular absorption have very similar line profiles and reveal a reservoir of cold gas (M-gas similar to 10(7) -10(8) M-circle dot), likely distributed in a disc or ring within a few kiloparsecs of the nucleus. A separate HI component is kinematically distinct and has a very narrow line width (Delta u(FWHM)

KW - galaxies: evolution

KW - galaxies: high redshift

KW - galaxies: ISM

KW - galaxies: structure

KW - radio lines: galaxies

KW - 21 CM ABSORPTION

KW - SUPERMASSIVE BLACK-HOLES

KW - ACTIVE GALACTIC NUCLEI

KW - COMPACT STEEP-SPECTRUM

KW - ELECTRON MASS-RATIO

KW - DIGITAL SKY SURVEY

KW - H I GAS

KW - MOLECULAR GAS

KW - STAR-FORMATION

KW - GRAVITATIONAL LENS

UR - http://www.scopus.com/inward/record.url?scp=85063756626&partnerID=8YFLogxK

U2 - 10.1093/mnras/sty2852

DO - 10.1093/mnras/sty2852

M3 - Article

VL - 482

SP - 2934

EP - 2949

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 3

ER -

PKS B1740-517: an ALMA view of the cold gas feeding a distant interacting young radio galaxy

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