Calibrating Star Formation Rate Prescriptions at Different Scales (10 pc-1 kpc) in M31
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Tomičić, Neven; Ho, I Ting; Kreckel, K.; Schinnerer, Eva; Leroy, Adam K; Groves, Brent Allan; Sandstrom, Karin M; Blanc, Guillermo A; Jarrett, Thomas; Thilker, D. A.; Kapala, Maria
Description
We calibrate commonly used star formation rate (SFR) prescriptions using observations in five kiloparsec-sized fields in the nearby galaxy Andromeda (M31) at 10 pc spatial resolution. Our observations at different scales enable us to resolve the star-forming regions and to distinguish them from non-star-forming components. We use extinction-corrected Ha from optical integral field spectroscopy as our reference tracer and have verified its reliability via tests. It is used to calibrate...[Show more]
dc.contributor.author | Tomičić, Neven | |
---|---|---|
dc.contributor.author | Ho, I Ting | |
dc.contributor.author | Kreckel, K. | |
dc.contributor.author | Schinnerer, Eva | |
dc.contributor.author | Leroy, Adam K | |
dc.contributor.author | Groves, Brent Allan | |
dc.contributor.author | Sandstrom, Karin M | |
dc.contributor.author | Blanc, Guillermo A | |
dc.contributor.author | Jarrett, Thomas | |
dc.contributor.author | Thilker, D. A. | |
dc.contributor.author | Kapala, Maria | |
dc.date.accessioned | 2022-03-08T04:48:54Z | |
dc.identifier.issn | 0004-637X | |
dc.identifier.uri | http://hdl.handle.net/1885/261919 | |
dc.description.abstract | We calibrate commonly used star formation rate (SFR) prescriptions using observations in five kiloparsec-sized fields in the nearby galaxy Andromeda (M31) at 10 pc spatial resolution. Our observations at different scales enable us to resolve the star-forming regions and to distinguish them from non-star-forming components. We use extinction-corrected Ha from optical integral field spectroscopy as our reference tracer and have verified its reliability via tests. It is used to calibrate monochromatic and hybrid (H alpha+alpha xIR and far-UV+bxIR) SFR prescriptions, which use far-UV (GALEX), 22 mu m (Wide-field Infrared Survey Explorer), and 24 mu m (MIPS). Additionally, we evaluate other multiwavelength infrared tracers. Our results indicate that the SFR prescriptions do not change (in M31) with spatial scales or with subtraction of the diffuse component. For the calibration factors in the hybrid SFR prescriptions, we find a approximate to 0.2 and b approximate to 22 in M31, which are a factor of 5 higher than in the literature. As the fields in M31 exhibit high attenuation and low dust temperatures, lie at large galactocentric distances, and suffer from high galactic inclination compared to measurements in other galaxies, we propose that the fields probe a dust layer extended along the line of sight that is not directly spatially associated with star-forming regions. This (vertically) extended dust component increases the attenuation and alters the SFR prescriptions in M31 compared to literature measurements. We recommend that SFR prescriptions should be applied with caution at large galactocentric distances and in highly inclined galaxies, due to variations in the relative (vertical) distribution of dust and gas. | |
dc.description.sponsorship | The authors wish to kindly thank Alexia Lewis, who shared the maps of modeled FUV emission and star formation history in M31, and to Sarah Leslie for additional comments. T.N. and K.K. acknowledge grants SCHI 536/8-2 and KR 4598/1-2 from the DFG Priority Program 1573. | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_AU | |
dc.publisher | IOP Publishing | |
dc.source | The Astrophysical Journal | |
dc.subject | galaxies: star formation | |
dc.subject | HII regions | |
dc.subject | galaxies: individual (M31) | |
dc.subject | ISM: general | |
dc.title | Calibrating Star Formation Rate Prescriptions at Different Scales (10 pc-1 kpc) in M31 | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 873 | |
dc.date.issued | 2019 | |
local.identifier.absfor | 020199 - Astronomical and Space Sciences not elsewhere classified | |
local.identifier.absfor | 020103 - Cosmology and Extragalactic Astronomy | |
local.identifier.ariespublication | u3102795xPUB2188 | |
local.publisher.url | https://iopscience.iop.org/ | |
local.type.status | Published Version | |
local.contributor.affiliation | Tomičić, Neven, Max Planck Institute for Astronomy | |
local.contributor.affiliation | Ho, I Ting, Max Planck Institut fur Astronomie | |
local.contributor.affiliation | Kreckel, K., Max Planck Institut fur Astronomie | |
local.contributor.affiliation | Schinnerer, Eva, Max Planck Institut fur Astronomie | |
local.contributor.affiliation | Leroy, Adam K, The Ohio State University | |
local.contributor.affiliation | Groves, Brent Allan, College of Science, ANU | |
local.contributor.affiliation | Sandstrom, Karin M, University of California | |
local.contributor.affiliation | Blanc, Guillermo A, Observatories of the Carnegie Institution for Science | |
local.contributor.affiliation | Jarrett, Thomas, University of Cape Town | |
local.contributor.affiliation | Thilker, D. A., Johns Hopkins University | |
local.contributor.affiliation | Kapala, Maria, University of Cape Town | |
local.description.embargo | 2099-12-31 | |
local.bibliographicCitation.issue | 3 | |
local.bibliographicCitation.startpage | 1 | |
local.bibliographicCitation.lastpage | 26 | |
local.identifier.doi | 10.3847/1538-4357/ab03ce | |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | |
dc.date.updated | 2020-12-20T07:24:52Z | |
local.identifier.thomsonID | 4.59985E+11 | |
Collections | ANU Research Publications |
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