Hailey-Dunsheath, S., Nikola, T., Stacey, G. J., Oberst, T. E., Parshley, S. C., Benford, D. J., Staguhn, J. G. and Tucker, Carole ![]() |
Abstract
We report the detection of 158 μm [C II] fine-structure line emission from MIPS J142824.0+352619, a hyperluminous (L IR ~ 1013 L ) starburst galaxy at z = 1.3. The line is bright, corresponding to a fraction L [C II]/L FIR 2 × 10–3 of the far-IR (FIR) continuum. The [C II], CO, and FIR continuum emission may be modeled as arising from photodissociation regions (PDRs) that have a characteristic gas density of n ~ 104.2 cm–3, and that are illuminated by a far-UV radiation field ~103.2 times more intense than the local interstellar radiation field. The mass in these PDRs accounts for approximately half of the molecular gas mass in this galaxy. The L [C II]/L FIR ratio is higher than observed in local ultraluminous infrared galaxies or in the few high-redshift QSOs detected in [C II], but the L [C II]/L FIR and L CO/L FIR ratios are similar to the values seen in nearby starburst galaxies. This suggests that MIPS J142824.0+352619 is a scaled-up version of a starburst nucleus, with the burst extended over several kiloparsecs.
Item Type: | Article |
---|---|
Date Type: | Publication |
Status: | Published |
Schools: | Schools > Physics and Astronomy |
Subjects: | Q Science > QB Astronomy |
Uncontrolled Keywords: | galaxies: high-redshift; galaxies: individual (MIPS J142824.0+352619); galaxies: ISM; galaxies: starburst; infrared: galaxies; submillimeter: general |
Publisher: | Institute of Physics |
ISSN: | 2041-8205 |
Last Modified: | 17 Oct 2022 10:13 |
URI: | https://orca.cardiff.ac.uk/id/eprint/7359 |
Citation Data
Cited 94 times in Scopus. View in Scopus. Powered By Scopus® Data
Actions (repository staff only)
![]() |
Edit Item |