The outburst of V1647 orionis revealed by spitzer

J. Muzerolle, S. T. Megeath, K. M. Flaherty, K. D. Gordon, George H. Rieke, E. T. Young, C. J. Lada

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

We present Spitzer Space Telescope observations of V1647 Ori, the outbursting source lighting McNeil's Nebula, taken near the optical peak of the outburst in early March 2004. The source is easily detected in all Spitzer imaging bands from 3.6 to 70 μm. The fluxes at all wavelengths are roughly a factor of 15 brighter than pre-outburst levels; we measure a bolometric luminosity of 44 L. We posit that this event is due to an increase in the accretion luminosity of the source. Simple models of an accretion disk plus a tenuous envelope can qualitatively explain the observed pre- and post-outburst spectral energy distributions. The accretion activity implied by our results indicates that the outburst may be intermediate between FUor- and EXor-type events. We also report the discovery of a previously unknown mid-infrared counterpart to the nearby Herbig-Haro object HH 22.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume620
Issue number2 II
DOIs
StatePublished - Feb 20 2005

Fingerprint

outburst
luminosity
Herbig-Haro objects
accretion
Space Infrared Telescope Facility
spectral energy distribution
nebulae
accretion disks
illuminating
envelopes
wavelengths
wavelength
energy

Keywords

  • Infrared: stars
  • Stars: formation
  • Stars: pre-main-sequence

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Muzerolle, J., Megeath, S. T., Flaherty, K. M., Gordon, K. D., Rieke, G. H., Young, E. T., & Lada, C. J. (2005). The outburst of V1647 orionis revealed by spitzer. Astrophysical Journal, 620(2 II). https://doi.org/10.1086/428832

The outburst of V1647 orionis revealed by spitzer. / Muzerolle, J.; Megeath, S. T.; Flaherty, K. M.; Gordon, K. D.; Rieke, George H.; Young, E. T.; Lada, C. J.

In: Astrophysical Journal, Vol. 620, No. 2 II, 20.02.2005.

Research output: Contribution to journalArticle

Muzerolle, J, Megeath, ST, Flaherty, KM, Gordon, KD, Rieke, GH, Young, ET & Lada, CJ 2005, 'The outburst of V1647 orionis revealed by spitzer', Astrophysical Journal, vol. 620, no. 2 II. https://doi.org/10.1086/428832
Muzerolle J, Megeath ST, Flaherty KM, Gordon KD, Rieke GH, Young ET et al. The outburst of V1647 orionis revealed by spitzer. Astrophysical Journal. 2005 Feb 20;620(2 II). https://doi.org/10.1086/428832
Muzerolle, J. ; Megeath, S. T. ; Flaherty, K. M. ; Gordon, K. D. ; Rieke, George H. ; Young, E. T. ; Lada, C. J. / The outburst of V1647 orionis revealed by spitzer. In: Astrophysical Journal. 2005 ; Vol. 620, No. 2 II.
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