The Impact of Inclination-dependent Attenuation on Ultraviolet Star Formation Rate Tracers
| dc.contributor.author | Doore, Keith | |
| dc.contributor.author | Eufrasio, Rafael T. | |
| dc.contributor.author | Lehmer, Bret D. | |
| dc.contributor.author | Monson, Erik B. | |
| dc.contributor.author | Basu-Zych, Antara | |
| dc.contributor.author | Garofali, Kristen | |
| dc.date.accessioned | 2022-06-22T00:29:00Z | |
| dc.date.available | 2022-06-22T00:29:00Z | |
| dc.date.issued | 2022-05-24 | |
| dc.description.abstract | We examine and quantify how hybrid (e.g., UV+IR) star formation rate (SFR) estimators and the AFUV–β relation depend on inclination for disk-dominated galaxies using spectral energy distribution modeling that utilizes the inclination-dependent attenuation curves described in Doore et al. We perform this analysis on a sample of 133 disk-dominated galaxies from the CANDELS fields and 18 disk galaxies from the Spitzer Infrared Nearby Galaxies Survey and Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel samples. We find that both the hybrid SFR estimators and the AFUV–β relation present clear dependencies on inclination. To quantify this dependence in the hybrid SFR estimators, we derive an inclination and a far-UV near-IR color-dependent parametric relation for converting observed UV and IR luminosities into SFRs. For the AFUV–β relation, we introduce an inclination-dependent component that accounts for the majority of the inclination dependence with the scatter of the relation increasing with inclination. We then compare both of these inclination-dependent relations to similar inclination independent relations found in the literature. From this comparison, we find that the UV+IR correction factor and AFUV for our hybrid and AFUV–β relations, respectively, result in a reduction in the residual scatter of our sample by approximately a factor of 2. Therefore, we demonstrate that inclination must be considered in hybrid SFR estimators and the AFUV–β relation to produce more accurate SFR estimates in disk-dominated galaxies. | en_US |
| dc.description.sponsorship | We acknowledge and thank the anonymous referee for the valuable and insightful comments that helped improve the quality of this paper. We gratefully acknowledge support from NASA Astrophysics Data Analysis Program (ADAP) grant 80NSSC20K0444 (K.D., R.T.E., B.D.L., E.B.M.) and NASA award No. 80GSFC21M0002 (A.B.). K.G. was supported by an appointment to the NASA Postdoctoral Program at Goddard Space Flight Center, administered by Oak Ridge Associated Universities under contract with NASA. This work is based on observations taken by the CANDELS Multi-Cycle Treasury Program with the NASA/ESA HST, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. This work has made use of the NASA/IPAC Extragalactic Database (NED), which is funded by the National Aeronautics and Space Administration and operated by the California Institute of Technology, and the Arkansas High Performance Computing Center, which is funded through multiple National Science Foundation grants and the Arkansas Economic Development Commission. We acknowledge the usage of the HyperLeda database (http://leda.univ-lyon1.fr). | en_US |
| dc.description.uri | https://arxiv.org/abs/2204.09580 | en_US |
| dc.format.extent | 24 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.genre | preprints | en_US |
| dc.identifier | doi:10.13016/m2fbpt-kpbx | |
| dc.identifier.uri | https://doi.org/10.3847/1538-4357/ac67e8 | |
| dc.identifier.uri | http://hdl.handle.net/11603/25022 | |
| dc.language.iso | en_US | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | en_US |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | The Impact of Inclination-dependent Attenuation on Ultraviolet Star Formation Rate Tracers | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0001-8525-4920 | en_US |