The [Fe II] 1.644 micron emission in M82 and NGC 253: Is it a measure of the supernova rate?

Almudena Alonso-Herrero, George H. Rieke, Marcia J Rieke, Douglas M. Kelly

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

We present Hubble Space Telescope NICMOS [Fe II] 1.644 μm, Paα (1.87 μm), and continuum images of the starburst galaxies M82 and NGC 253 at an unprecedented spatial resolution, In both galaxies we detect [Fe II] compact sources superposed on a diffuse background in the disk of the galaxies, together with a component above and below the plane of the galaxy. The radio and [Fe II] emissions perpendicular to the disk of M82 show a remarkable similarity to each other, suggesting that both emissions originate in shocks from supernova explosions. We find a spatial correspondence between bright compact [Fe II]-emitting regions and the location of radio supernova remnants (SNRs) for approximately 30%-50% of radio SNRs in M82 and NGC 253. This lack of a one-to-one correspondence, more than being indicative of a different origin for the radio and [Fe II] emission in starbursts, suggests two populations of SNRs: an older population (≤, 104 yr), traced by the [Fe II] emission, and a younger population (a few hundred years old), traced by the radio SNRs. We therefore conclude that the [Fe II] emission in starburst galaxies provides a good estimate of the supernova activity. Using our newly determined [Fe II] luminosities (corrected for extinction) of M82 and NGC 253, we reevaluate the calibration of the supernova rate in terms of the [Fe II] luminosity for starburst galaxies.

Original languageEnglish (US)
Pages (from-to)1210-1225
Number of pages16
JournalAstronomical Journal
Volume125
Issue number3 1767
DOIs
StatePublished - Mar 2003

Fingerprint

supernovae
supernova remnants
starburst galaxies
radio
galaxies
luminosity
young population
Hubble Space Telescope
explosions
explosion
extinction
spatial resolution
shock
rate
continuums
calibration
estimates

Keywords

  • Galaxies: individual (M82, NGC 253)
  • Galaxies: nuclei
  • Galaxies: stellar content infrared radiation

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

The [Fe II] 1.644 micron emission in M82 and NGC 253 : Is it a measure of the supernova rate? / Alonso-Herrero, Almudena; Rieke, George H.; Rieke, Marcia J; Kelly, Douglas M.

In: Astronomical Journal, Vol. 125, No. 3 1767, 03.2003, p. 1210-1225.

Research output: Contribution to journalArticle

@article{c5308d209b714f36b151413fc0ac25ba,
title = "The [Fe II] 1.644 micron emission in M82 and NGC 253: Is it a measure of the supernova rate?",
abstract = "We present Hubble Space Telescope NICMOS [Fe II] 1.644 μm, Paα (1.87 μm), and continuum images of the starburst galaxies M82 and NGC 253 at an unprecedented spatial resolution, In both galaxies we detect [Fe II] compact sources superposed on a diffuse background in the disk of the galaxies, together with a component above and below the plane of the galaxy. The radio and [Fe II] emissions perpendicular to the disk of M82 show a remarkable similarity to each other, suggesting that both emissions originate in shocks from supernova explosions. We find a spatial correspondence between bright compact [Fe II]-emitting regions and the location of radio supernova remnants (SNRs) for approximately 30{\%}-50{\%} of radio SNRs in M82 and NGC 253. This lack of a one-to-one correspondence, more than being indicative of a different origin for the radio and [Fe II] emission in starbursts, suggests two populations of SNRs: an older population (≤, 104 yr), traced by the [Fe II] emission, and a younger population (a few hundred years old), traced by the radio SNRs. We therefore conclude that the [Fe II] emission in starburst galaxies provides a good estimate of the supernova activity. Using our newly determined [Fe II] luminosities (corrected for extinction) of M82 and NGC 253, we reevaluate the calibration of the supernova rate in terms of the [Fe II] luminosity for starburst galaxies.",
keywords = "Galaxies: individual (M82, NGC 253), Galaxies: nuclei, Galaxies: stellar content infrared radiation",
author = "Almudena Alonso-Herrero and Rieke, {George H.} and Rieke, {Marcia J} and Kelly, {Douglas M.}",
year = "2003",
month = "3",
doi = "10.1086/367790",
language = "English (US)",
volume = "125",
pages = "1210--1225",
journal = "Astronomical Journal",
issn = "0004-6256",
publisher = "IOP Publishing Ltd.",
number = "3 1767",

}

TY - JOUR

T1 - The [Fe II] 1.644 micron emission in M82 and NGC 253

T2 - Is it a measure of the supernova rate?

AU - Alonso-Herrero, Almudena

AU - Rieke, George H.

AU - Rieke, Marcia J

AU - Kelly, Douglas M.

PY - 2003/3

Y1 - 2003/3

N2 - We present Hubble Space Telescope NICMOS [Fe II] 1.644 μm, Paα (1.87 μm), and continuum images of the starburst galaxies M82 and NGC 253 at an unprecedented spatial resolution, In both galaxies we detect [Fe II] compact sources superposed on a diffuse background in the disk of the galaxies, together with a component above and below the plane of the galaxy. The radio and [Fe II] emissions perpendicular to the disk of M82 show a remarkable similarity to each other, suggesting that both emissions originate in shocks from supernova explosions. We find a spatial correspondence between bright compact [Fe II]-emitting regions and the location of radio supernova remnants (SNRs) for approximately 30%-50% of radio SNRs in M82 and NGC 253. This lack of a one-to-one correspondence, more than being indicative of a different origin for the radio and [Fe II] emission in starbursts, suggests two populations of SNRs: an older population (≤, 104 yr), traced by the [Fe II] emission, and a younger population (a few hundred years old), traced by the radio SNRs. We therefore conclude that the [Fe II] emission in starburst galaxies provides a good estimate of the supernova activity. Using our newly determined [Fe II] luminosities (corrected for extinction) of M82 and NGC 253, we reevaluate the calibration of the supernova rate in terms of the [Fe II] luminosity for starburst galaxies.

AB - We present Hubble Space Telescope NICMOS [Fe II] 1.644 μm, Paα (1.87 μm), and continuum images of the starburst galaxies M82 and NGC 253 at an unprecedented spatial resolution, In both galaxies we detect [Fe II] compact sources superposed on a diffuse background in the disk of the galaxies, together with a component above and below the plane of the galaxy. The radio and [Fe II] emissions perpendicular to the disk of M82 show a remarkable similarity to each other, suggesting that both emissions originate in shocks from supernova explosions. We find a spatial correspondence between bright compact [Fe II]-emitting regions and the location of radio supernova remnants (SNRs) for approximately 30%-50% of radio SNRs in M82 and NGC 253. This lack of a one-to-one correspondence, more than being indicative of a different origin for the radio and [Fe II] emission in starbursts, suggests two populations of SNRs: an older population (≤, 104 yr), traced by the [Fe II] emission, and a younger population (a few hundred years old), traced by the radio SNRs. We therefore conclude that the [Fe II] emission in starburst galaxies provides a good estimate of the supernova activity. Using our newly determined [Fe II] luminosities (corrected for extinction) of M82 and NGC 253, we reevaluate the calibration of the supernova rate in terms of the [Fe II] luminosity for starburst galaxies.

KW - Galaxies: individual (M82, NGC 253)

KW - Galaxies: nuclei

KW - Galaxies: stellar content infrared radiation

UR - http://www.scopus.com/inward/record.url?scp=0242475299&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0242475299&partnerID=8YFLogxK

U2 - 10.1086/367790

DO - 10.1086/367790

M3 - Article

AN - SCOPUS:0242475299

VL - 125

SP - 1210

EP - 1225

JO - Astronomical Journal

JF - Astronomical Journal

SN - 0004-6256

IS - 3 1767

ER -