SDSS-IV MaNGA: spatially resolved dust attenuation in spiral galaxies

Michael J. Greener; Alfonso Aragón-Salamanca; Michael R. Merrifield; Thomas G. Peterken; Amelia Fraser-McKelvie; Karen L. Masters; Coleman M. Krawczyk; Nicholas F. Boardman; Médéric Boquien; Brett H. Andrews; Jonathan Brinkmann; Niv Drory

doi:10.1093/MNRAS/STAA1300

SDSS-IV MaNGA: spatially resolved dust attenuation in spiral galaxies

Michael J. Greener^*, Alfonso Aragón-Salamanca, Michael R. Merrifield, Thomas G. Peterken, Amelia Fraser-McKelvie, Karen L. Masters, Coleman M. Krawczyk, Nicholas F. Boardman, Médéric Boquien, Brett H. Andrews, Jonathan Brinkmann, Niv Drory

^*Corresponding author for this work

Institute of Cosmology & Gravitation

Research output: Contribution to journal › Article › peer-review

143 Downloads (Pure)

Abstract

Dust attenuation in star-forming spiral galaxies affects stars and gas in different ways due to local variations in dust geometry. We present spatially resolved measurements of dust attenuation for a sample of 232 such star-forming spiral galaxies, derived from spectra acquired by the SDSS-IV MaNGA survey. The dust attenuation affecting the stellar populations of these galaxies (obtained using full spectrum stellar population fitting methods) is compared with the dust attenuation in the gas (derived from the Balmer decrement). Both of these attenuation measures increase for local regions of galaxies with higher star formation rates; the dust attenuation affecting the stellar populations increases more so than the dust attenuation in the gas, causing the ratio of the dust attenuation affecting the stellar populations to the dust attenuation in the gas to decrease for local regions of galaxies with higher star formation rate densities. No systematic difference is discernible in any of these dust attenuation quantities between the spiral arm and interarm regions of the galaxies. While both the dust attenuation in the gas and the dust attenuation affecting the stellar populations decrease with galactocentric radius, the ratio of the two quantities does not vary with radius. This ratio does, however, decrease systematically as the stellar mass of the galaxy increases. Analysis of the radial profiles of the two dust attenuation measures suggests that there is a disproportionately high concentration of birth clouds (incorporating gas, young stars, and clumpy dust) nearer to the centres of star-forming spiral galaxies.

Original language	English
Pages (from-to)	2305-2320
Number of pages	16
Journal	Monthly Notices of the Royal Astronomical Society
Volume	495
Issue number	2
Early online date	16 May 2020
DOIs	https://doi.org/10.1093/MNRAS/STAA1300
Publication status	Published - 1 Jun 2020

Keywords

Dust, extinction
Galaxies: spiral
Galaxies: star formation

Access to Document

10.1093/MNRAS/STAA1300

staa1300
This article has been accepted for publication in MNRAS ©: 2020 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Final published version, 4.94 MB

Data availabililty statement for 'SDSS-IV MaNGA: spatially resolved dust attenuation in spiral galaxies'.
Greener, M. J. (Creator), Aragon-Salamanca, A. (Creator), Merrifield, M. R. (Creator), Peterken, T. G. (Creator), Fraser-McKelvie, A. (Creator), Masters, K. (Creator), Krawczyk, C. (Creator), Boardman, N. F. (Creator), Boquien, M. (Creator), Andrews, B. H. (Creator), Brinkmann, J. V. (Creator) & Drory, N. (Creator), Oxford University Press, 16 May 2020
Dataset

Cite this

Greener, M. J., Aragón-Salamanca, A., Merrifield, M. R., Peterken, T. G., Fraser-McKelvie, A., Masters, K. L., Krawczyk, C. M., Boardman, N. F., Boquien, M., Andrews, B. H., Brinkmann, J., & Drory, N. (2020). SDSS-IV MaNGA: spatially resolved dust attenuation in spiral galaxies. Monthly Notices of the Royal Astronomical Society, 495(2), 2305-2320. https://doi.org/10.1093/MNRAS/STAA1300

@article{2c6ee27ebc1344189cecb8bcf1b003d9,

title = "SDSS-IV MaNGA: spatially resolved dust attenuation in spiral galaxies",

abstract = "Dust attenuation in star-forming spiral galaxies affects stars and gas in different ways due to local variations in dust geometry. We present spatially resolved measurements of dust attenuation for a sample of 232 such star-forming spiral galaxies, derived from spectra acquired by the SDSS-IV MaNGA survey. The dust attenuation affecting the stellar populations of these galaxies (obtained using full spectrum stellar population fitting methods) is compared with the dust attenuation in the gas (derived from the Balmer decrement). Both of these attenuation measures increase for local regions of galaxies with higher star formation rates; the dust attenuation affecting the stellar populations increases more so than the dust attenuation in the gas, causing the ratio of the dust attenuation affecting the stellar populations to the dust attenuation in the gas to decrease for local regions of galaxies with higher star formation rate densities. No systematic difference is discernible in any of these dust attenuation quantities between the spiral arm and interarm regions of the galaxies. While both the dust attenuation in the gas and the dust attenuation affecting the stellar populations decrease with galactocentric radius, the ratio of the two quantities does not vary with radius. This ratio does, however, decrease systematically as the stellar mass of the galaxy increases. Analysis of the radial profiles of the two dust attenuation measures suggests that there is a disproportionately high concentration of birth clouds (incorporating gas, young stars, and clumpy dust) nearer to the centres of star-forming spiral galaxies.",

keywords = "Dust, extinction, Galaxies: spiral, Galaxies: star formation",

author = "Greener, {Michael J.} and Alfonso Arag{\'o}n-Salamanca and Merrifield, {Michael R.} and Peterken, {Thomas G.} and Amelia Fraser-McKelvie and Masters, {Karen L.} and Krawczyk, {Coleman M.} and Boardman, {Nicholas F.} and M{\'e}d{\'e}ric Boquien and Andrews, {Brett H.} and Jonathan Brinkmann and Niv Drory",

year = "2020",

month = jun,

day = "1",

doi = "10.1093/MNRAS/STAA1300",

language = "English",

volume = "495",

pages = "2305--2320",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "2",

}

Greener, MJ, Aragón-Salamanca, A, Merrifield, MR, Peterken, TG, Fraser-McKelvie, A, Masters, KL, Krawczyk, CM, Boardman, NF, Boquien, M, Andrews, BH, Brinkmann, J & Drory, N 2020, 'SDSS-IV MaNGA: spatially resolved dust attenuation in spiral galaxies', Monthly Notices of the Royal Astronomical Society, vol. 495, no. 2, pp. 2305-2320. https://doi.org/10.1093/MNRAS/STAA1300

TY - JOUR

T1 - SDSS-IV MaNGA

T2 - spatially resolved dust attenuation in spiral galaxies

AU - Greener, Michael J.

AU - Aragón-Salamanca, Alfonso

AU - Merrifield, Michael R.

AU - Peterken, Thomas G.

AU - Fraser-McKelvie, Amelia

AU - Masters, Karen L.

AU - Krawczyk, Coleman M.

AU - Boardman, Nicholas F.

AU - Boquien, Médéric

AU - Andrews, Brett H.

AU - Brinkmann, Jonathan

AU - Drory, Niv

PY - 2020/6/1

Y1 - 2020/6/1

N2 - Dust attenuation in star-forming spiral galaxies affects stars and gas in different ways due to local variations in dust geometry. We present spatially resolved measurements of dust attenuation for a sample of 232 such star-forming spiral galaxies, derived from spectra acquired by the SDSS-IV MaNGA survey. The dust attenuation affecting the stellar populations of these galaxies (obtained using full spectrum stellar population fitting methods) is compared with the dust attenuation in the gas (derived from the Balmer decrement). Both of these attenuation measures increase for local regions of galaxies with higher star formation rates; the dust attenuation affecting the stellar populations increases more so than the dust attenuation in the gas, causing the ratio of the dust attenuation affecting the stellar populations to the dust attenuation in the gas to decrease for local regions of galaxies with higher star formation rate densities. No systematic difference is discernible in any of these dust attenuation quantities between the spiral arm and interarm regions of the galaxies. While both the dust attenuation in the gas and the dust attenuation affecting the stellar populations decrease with galactocentric radius, the ratio of the two quantities does not vary with radius. This ratio does, however, decrease systematically as the stellar mass of the galaxy increases. Analysis of the radial profiles of the two dust attenuation measures suggests that there is a disproportionately high concentration of birth clouds (incorporating gas, young stars, and clumpy dust) nearer to the centres of star-forming spiral galaxies.

AB - Dust attenuation in star-forming spiral galaxies affects stars and gas in different ways due to local variations in dust geometry. We present spatially resolved measurements of dust attenuation for a sample of 232 such star-forming spiral galaxies, derived from spectra acquired by the SDSS-IV MaNGA survey. The dust attenuation affecting the stellar populations of these galaxies (obtained using full spectrum stellar population fitting methods) is compared with the dust attenuation in the gas (derived from the Balmer decrement). Both of these attenuation measures increase for local regions of galaxies with higher star formation rates; the dust attenuation affecting the stellar populations increases more so than the dust attenuation in the gas, causing the ratio of the dust attenuation affecting the stellar populations to the dust attenuation in the gas to decrease for local regions of galaxies with higher star formation rate densities. No systematic difference is discernible in any of these dust attenuation quantities between the spiral arm and interarm regions of the galaxies. While both the dust attenuation in the gas and the dust attenuation affecting the stellar populations decrease with galactocentric radius, the ratio of the two quantities does not vary with radius. This ratio does, however, decrease systematically as the stellar mass of the galaxy increases. Analysis of the radial profiles of the two dust attenuation measures suggests that there is a disproportionately high concentration of birth clouds (incorporating gas, young stars, and clumpy dust) nearer to the centres of star-forming spiral galaxies.

KW - Dust, extinction

KW - Galaxies: spiral

KW - Galaxies: star formation

UR - http://www.scopus.com/inward/record.url?scp=85101365932&partnerID=8YFLogxK

U2 - 10.1093/MNRAS/STAA1300

DO - 10.1093/MNRAS/STAA1300

M3 - Article

AN - SCOPUS:85101365932

SN - 0035-8711

VL - 495

SP - 2305

EP - 2320

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

SDSS-IV MaNGA: spatially resolved dust attenuation in spiral galaxies

Abstract

Keywords

Access to Document

Fingerprint

Datasets

Data availabililty statement for 'SDSS-IV MaNGA: spatially resolved dust attenuation in spiral galaxies'.

Cite this