University of Hertfordshire

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A Herschel*-ATLAS study of dusty spheroids: Probing the minor-merger process in the local Universe

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A Herschel*-ATLAS study of dusty spheroids : Probing the minor-merger process in the local Universe. / Kaviraj, S.; Rowlands, K.; Alpaslan, M.; Dunne, L.; Ting, Y. S.; Bureau, M.; Shabala, S.; Lintott, C.J.; Smith, Daniel; Agius, N.; Auld, R.; Baes, M.; Bourne, N.; Cava, A.; Clements, D. L.; Cooray, A.; Dariush, A.; de Zotti, G.; Driver, S. P.; Eales, S.; Hopwood, R.; Hoyos, C.; Ibar, E.; Maddox, S.; Michalowski, M. J.; Sansom, A. E.; Smith, M.; Valiante, E.

In: Monthly Notices of the Royal Astronomical Society, Vol. 435, No. 2, 10.2013, p. 1463-1468.

Research output: Contribution to journalArticlepeer-review

Harvard

Kaviraj, S, Rowlands, K, Alpaslan, M, Dunne, L, Ting, YS, Bureau, M, Shabala, S, Lintott, CJ, Smith, D, Agius, N, Auld, R, Baes, M, Bourne, N, Cava, A, Clements, DL, Cooray, A, Dariush, A, de Zotti, G, Driver, SP, Eales, S, Hopwood, R, Hoyos, C, Ibar, E, Maddox, S, Michalowski, MJ, Sansom, AE, Smith, M & Valiante, E 2013, 'A Herschel*-ATLAS study of dusty spheroids: Probing the minor-merger process in the local Universe', Monthly Notices of the Royal Astronomical Society, vol. 435, no. 2, pp. 1463-1468. https://doi.org/10.1093/mnras/stt1629

APA

Kaviraj, S., Rowlands, K., Alpaslan, M., Dunne, L., Ting, Y. S., Bureau, M., Shabala, S., Lintott, C. J., Smith, D., Agius, N., Auld, R., Baes, M., Bourne, N., Cava, A., Clements, D. L., Cooray, A., Dariush, A., de Zotti, G., Driver, S. P., ... Valiante, E. (2013). A Herschel*-ATLAS study of dusty spheroids: Probing the minor-merger process in the local Universe. Monthly Notices of the Royal Astronomical Society, 435(2), 1463-1468. https://doi.org/10.1093/mnras/stt1629

Vancouver

Author

Kaviraj, S. ; Rowlands, K. ; Alpaslan, M. ; Dunne, L. ; Ting, Y. S. ; Bureau, M. ; Shabala, S. ; Lintott, C.J. ; Smith, Daniel ; Agius, N. ; Auld, R. ; Baes, M. ; Bourne, N. ; Cava, A. ; Clements, D. L. ; Cooray, A. ; Dariush, A. ; de Zotti, G. ; Driver, S. P. ; Eales, S. ; Hopwood, R. ; Hoyos, C. ; Ibar, E. ; Maddox, S. ; Michalowski, M. J. ; Sansom, A. E. ; Smith, M. ; Valiante, E. / A Herschel*-ATLAS study of dusty spheroids : Probing the minor-merger process in the local Universe. In: Monthly Notices of the Royal Astronomical Society. 2013 ; Vol. 435, No. 2. pp. 1463-1468.

Bibtex

@article{d50bcbbfe0f04f33862dd9dea5823082,
title = "A Herschel*-ATLAS study of dusty spheroids: Probing the minor-merger process in the local Universe",
abstract = "We use multiwavelength (0.12-500 μm) photometry from Herschel-ATLAS, WISE, UKIDSS, SDSS and GALEX to study 23 nearby spheroidal galaxies with prominent dust lanes (DLSGs). DLSGs are considered to be remnants of recent minor mergers, making them ideal laboratories for studying both the interstellar medium (ISM) of spheroids and minor-merger-driven star formation in thenearby Universe. The DLSGs exhibit star formation rates (SFRs) between 0.01and 10M yr with a median of 0.26M yr (a factor of 3.5 greater thanthe average SG). The median dust mass, dust-to-stellar mass ratio and dust temperature in these galaxies are around 107.6M, ≈0.05 per cent and ≈19.5K, respectively. The dust masses are at least a factor of 50 greater than that expected from stellar mass loss and, like the SFRs, show no correlationwith galaxy luminosity, suggesting that both the ISM and the star formationhave external drivers. Adopting literature gas-to-dust ratios and star formation histories derived from fits to the panchromatic photometry, we estimate that the median current and initial gasto- stellar mass ratios in these systems are ≈4 and ≈7 per cent, respectively. If, as indicated by recent work, minor mergers that drive star formation in spheroids with (NUV - r) > 3.8 (the colour range of our DLSGs) have stellar mass ratios between 1:6 and 1:10, then the satellite gas fractions are likely =50 per cent.",
author = "S. Kaviraj and K. Rowlands and M. Alpaslan and L. Dunne and Ting, {Y. S.} and M. Bureau and S. Shabala and C.J. Lintott and Daniel Smith and N. Agius and R. Auld and M. Baes and N. Bourne and A. Cava and Clements, {D. L.} and A. Cooray and A. Dariush and {de Zotti}, G. and Driver, {S. P.} and S. Eales and R. Hopwood and C. Hoyos and E. Ibar and S. Maddox and Michalowski, {M. J.} and Sansom, {A. E.} and M. Smith and E. Valiante",
year = "2013",
month = oct,
doi = "10.1093/mnras/stt1629",
language = "English",
volume = "435",
pages = "1463--1468",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "2",

}

RIS

TY - JOUR

T1 - A Herschel*-ATLAS study of dusty spheroids

T2 - Probing the minor-merger process in the local Universe

AU - Kaviraj, S.

AU - Rowlands, K.

AU - Alpaslan, M.

AU - Dunne, L.

AU - Ting, Y. S.

AU - Bureau, M.

AU - Shabala, S.

AU - Lintott, C.J.

AU - Smith, Daniel

AU - Agius, N.

AU - Auld, R.

AU - Baes, M.

AU - Bourne, N.

AU - Cava, A.

AU - Clements, D. L.

AU - Cooray, A.

AU - Dariush, A.

AU - de Zotti, G.

AU - Driver, S. P.

AU - Eales, S.

AU - Hopwood, R.

AU - Hoyos, C.

AU - Ibar, E.

AU - Maddox, S.

AU - Michalowski, M. J.

AU - Sansom, A. E.

AU - Smith, M.

AU - Valiante, E.

PY - 2013/10

Y1 - 2013/10

N2 - We use multiwavelength (0.12-500 μm) photometry from Herschel-ATLAS, WISE, UKIDSS, SDSS and GALEX to study 23 nearby spheroidal galaxies with prominent dust lanes (DLSGs). DLSGs are considered to be remnants of recent minor mergers, making them ideal laboratories for studying both the interstellar medium (ISM) of spheroids and minor-merger-driven star formation in thenearby Universe. The DLSGs exhibit star formation rates (SFRs) between 0.01and 10M yr with a median of 0.26M yr (a factor of 3.5 greater thanthe average SG). The median dust mass, dust-to-stellar mass ratio and dust temperature in these galaxies are around 107.6M, ≈0.05 per cent and ≈19.5K, respectively. The dust masses are at least a factor of 50 greater than that expected from stellar mass loss and, like the SFRs, show no correlationwith galaxy luminosity, suggesting that both the ISM and the star formationhave external drivers. Adopting literature gas-to-dust ratios and star formation histories derived from fits to the panchromatic photometry, we estimate that the median current and initial gasto- stellar mass ratios in these systems are ≈4 and ≈7 per cent, respectively. If, as indicated by recent work, minor mergers that drive star formation in spheroids with (NUV - r) > 3.8 (the colour range of our DLSGs) have stellar mass ratios between 1:6 and 1:10, then the satellite gas fractions are likely =50 per cent.

AB - We use multiwavelength (0.12-500 μm) photometry from Herschel-ATLAS, WISE, UKIDSS, SDSS and GALEX to study 23 nearby spheroidal galaxies with prominent dust lanes (DLSGs). DLSGs are considered to be remnants of recent minor mergers, making them ideal laboratories for studying both the interstellar medium (ISM) of spheroids and minor-merger-driven star formation in thenearby Universe. The DLSGs exhibit star formation rates (SFRs) between 0.01and 10M yr with a median of 0.26M yr (a factor of 3.5 greater thanthe average SG). The median dust mass, dust-to-stellar mass ratio and dust temperature in these galaxies are around 107.6M, ≈0.05 per cent and ≈19.5K, respectively. The dust masses are at least a factor of 50 greater than that expected from stellar mass loss and, like the SFRs, show no correlationwith galaxy luminosity, suggesting that both the ISM and the star formationhave external drivers. Adopting literature gas-to-dust ratios and star formation histories derived from fits to the panchromatic photometry, we estimate that the median current and initial gasto- stellar mass ratios in these systems are ≈4 and ≈7 per cent, respectively. If, as indicated by recent work, minor mergers that drive star formation in spheroids with (NUV - r) > 3.8 (the colour range of our DLSGs) have stellar mass ratios between 1:6 and 1:10, then the satellite gas fractions are likely =50 per cent.

UR - http://www.scopus.com/inward/record.url?scp=84884797125&partnerID=8YFLogxK

U2 - 10.1093/mnras/stt1629

DO - 10.1093/mnras/stt1629

M3 - Article

AN - SCOPUS:84884797125

VL - 435

SP - 1463

EP - 1468

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -