The haloes and environments of nearby galaxies (HERON) – II. The outer structure of edge-on galaxies
| العنوان: | The haloes and environments of nearby galaxies (HERON) – II. The outer structure of edge-on galaxies |
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| المؤلفون: | R. Michael Rich, Noah Brosch, David A. Thilker, Oliver Müller, Anton A. Smirnov, Aleksandr V. Mosenkov, Andreas Koch, J. Roman, Pavel A. Usachev |
| المساهمون: | Observatoire astronomique de Strasbourg (ObAS), Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Ministerio de Ciencia, Innovación y Universidades (España), European Commission, Russian Science Foundation |
| المصدر: | Monthly Notices of the Royal Astronomical Society Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 494 (2), pp.1751-1770. ⟨10.1093/mnras/staa678⟩ Digital.CSIC. Repositorio Institucional del CSIC instname |
| بيانات النشر: | Oxford University Press (OUP), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | haloes [Galaxies], structure [Galaxies], FOS: Physical sciences, Library science, interactions [Galaxies], Galaxies: formation, 01 natural sciences, Spitzer Space Telescope, Galaxies: structure, biology.animal, 0103 physical sciences, Galaxies: haloes, 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, Physics, biology, 010308 nuclear & particles physics, photometry [Galaxies], Galaxies: evolution, Astronomy and Astrophysics, Galaxies: photometry, evolution [Galaxies], Astrophysics - Astrophysics of Galaxies, formation [Galaxies], Galaxy, Galaxies: interactions, State agency, [SDU]Sciences of the Universe [physics], Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Heron |
| الوصف: | The HERON project is aimed at studying haloes and low surface brightness details near galaxies. In this second HERON paper we consider in detail deep imaging (down to surface brightness of ∼28 mag/arcsec2 in the r band) for 35 galaxies, viewed edge-on. We confirm a range of low surface brightness features previously described in the literature but also report new ones. We classify the observed outer shapes of the galaxies into three main types (and their prototypes): disc/diamond-like (NGC 891), oval (NGC 4302), and boxy (NGC 3628). We show that the shape of the outer disc in galaxies does not often follow the general 3D model of an exponential disc: 17 galaxies in our sample exhibit oval or even boxy isophotes at the periphery. Also, we show that the less flattened the outer disc is, the more oval or boxy its structure. Many galaxies in our sample have an asymmetric outer structure. We propose that the observed diversity of the galaxy outer shapes is defined by the merger history and its intensity: if no recent multiple minor or single major merging took place, the outer shape is diamond-like or discy. On the contrary, interacting galaxies show oval outer shapes, whereas recent merging appears to transform the outer shape to boxy.© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society We thank the anonymous reviewer for helpful comments on the paper. This research has made use of the NASA/IPAC Infrared Science Archive (IRSA; http://irsa.ipac.caltech.edu/frontpage/), and the NASA/IPAC Extragalactic Data base (NED; https://ned.ipac .caltech.edu/), both of which are operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research has made use of the HyperLeda data base (http://leda.univ-lyon1.fr/; Makarov et al. 2014). This work is based in part on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. RMR acknowledges financial support from his late father Jay Baum Rich. JR acknowledges financial support from the State Agency for Research of the Spanish MCIU through the ‘Center of Excellence Severo Ochoa’ award to the Instituto de Astrof´ısica de Andaluc´ıa (SEV-2017-0709) and support from the grant RTI2018-096228-B-C31 (MICIU/FEDER, EU). PU acknowledges financial support from the Russian Science Foundation (grant no. 19-12-00145) |
| تدمد: | 1365-2966 0035-8711 |
| DOI: | 10.1093/mnras/staa678 |
| DOI: | 10.1093/mnras/staa678⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bfe91a387ec54d6375dedcba4ea0b80 https://doi.org/10.1093/mnras/staa678 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....8bfe91a387ec54d6375dedcba4ea0b80 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13652966 00358711 |
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| DOI: | 10.1093/mnras/staa678 |