Bell, CPM, Cioni, M-RL, Wright, AH, Nidever, DL, Chiang, I-D, Choudhury, S, Groenewegen, MAT, Pennock, CM, Choi, Y, de Grijs, R, Ivanov, VD, Massana, P, Nanni, A, Noël, NED, Olsen, K, van Loon, JT, Vivas, AK and Zaritsky, D (2022) The intrinsic reddening of the Magellanic Clouds as traced by background galaxies – III. The Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 516 (1). 824 - 840. ISSN 0035-8711

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Abstract

<jats:title>ABSTRACT</jats:title> <jats:p>We present a map of the total intrinsic reddening across ≃ 90 deg2 of the Large Magellanic Cloud (LMC) derived using optical (ugriz) and near-infrared (IR; YJKs) spectral energy distributions (SEDs) of background galaxies. The reddening map is created from a sample of 222 752 early-type galaxies based on the lephareχ2 minimization SED-fitting routine. We find excellent agreement between the regions of enhanced intrinsic reddening across the central (4 × 4 deg2) region of the LMC and the morphology of the low-level pervasive dust emission as traced by far-IR emission. In addition, we are able to distinguish smaller, isolated enhancements that are coincident with known star-forming regions and the clustering of young stars observed in morphology maps. The level of reddening associated with the molecular ridge south of 30 Doradus is, however, smaller than in the literature reddening maps. The reduced number of galaxies detected in this region, due to high extinction and crowding, may bias our results towards lower reddening values. Our map is consistent with maps derived from red clump stars and from the analysis of the star formation history across the LMC. This study represents one of the first large-scale categorizations of extragalactic sources behind the LMC and as such we provide the lephare outputs for our full sample of ∼ 2.5 million sources.</jats:p>

Item Type: Article
Additional Information: The final version of this article and all relevant information related to it, including copyrights, can be found on the publisher website.
Subjects: Q Science > Q Science (General)
Q Science > QB Astronomy
Q Science > QB Astronomy > QB460 Astrophysics
Q Science > QB Astronomy > QB600 Planets. Planetology
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Depositing User: Symplectic
Date Deposited: 07 Oct 2022 14:26
Last Modified: 07 Oct 2022 14:26
URI: https://eprints.keele.ac.uk/id/eprint/11521

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