Spitzer/IRAC-MIPS survey of NGC 2451A and B: Debris disks at 50-80 million years

Zoltan Balog, László L. Kiss, József Vinkó, George H. Rieke, James Muzerolle, András Gáspár, Erick T. Young, Nadya Gorlova

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We present a Spitzer IRAC and MIPS survey of NGC 2451A and B, two open clusters in the 50-80 Myr age range. We complement these data with extensive ground-based photometry and spectroscopy to identify the cluster members in the Spitzer survey field. We find only two members with 8 μm excesses. The incidence of excesses at 24μm is much higher, i.e., 11 of 31 solar-like stars and 1 of 7 early-type (A) stars. This work nearly completes the debris disk surveys with Spitzer of clusters in the 30-130 Myr range. This range is of interest because it is when large planetesimal collisions may have still been relatively common (as indicated by the one that led to the formation of the Moon during this period of the evolution of the solar system). We review the full set of surveys and find that there are only three possible cases out of about 250 roughly solar-mass stars where very large excesses suggest that such collisions have occurred recently.

Original languageEnglish (US)
Pages (from-to)1989-2013
Number of pages25
JournalAstrophysical Journal
Volume698
Issue number2
DOIs
StatePublished - Jun 20 2009

Fingerprint

debris
collision
planetesimal
A stars
stars
solar system
field survey
collisions
Moon
protoplanets
open clusters
moon
spectroscopy
complement
photometry
incidence

Keywords

  • Circumstellar matter
  • Infrared: stars
  • Open clusters and associations: individual (NGC 2451)
  • Planetary systems: protoplanetary disks

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Balog, Z., Kiss, L. L., Vinkó, J., Rieke, G. H., Muzerolle, J., Gáspár, A., ... Gorlova, N. (2009). Spitzer/IRAC-MIPS survey of NGC 2451A and B: Debris disks at 50-80 million years. Astrophysical Journal, 698(2), 1989-2013. https://doi.org/10.1088/0004-637X/698/2/1989

Spitzer/IRAC-MIPS survey of NGC 2451A and B : Debris disks at 50-80 million years. / Balog, Zoltan; Kiss, László L.; Vinkó, József; Rieke, George H.; Muzerolle, James; Gáspár, András; Young, Erick T.; Gorlova, Nadya.

In: Astrophysical Journal, Vol. 698, No. 2, 20.06.2009, p. 1989-2013.

Research output: Contribution to journalArticle

Balog, Z, Kiss, LL, Vinkó, J, Rieke, GH, Muzerolle, J, Gáspár, A, Young, ET & Gorlova, N 2009, 'Spitzer/IRAC-MIPS survey of NGC 2451A and B: Debris disks at 50-80 million years', Astrophysical Journal, vol. 698, no. 2, pp. 1989-2013. https://doi.org/10.1088/0004-637X/698/2/1989
Balog, Zoltan ; Kiss, László L. ; Vinkó, József ; Rieke, George H. ; Muzerolle, James ; Gáspár, András ; Young, Erick T. ; Gorlova, Nadya. / Spitzer/IRAC-MIPS survey of NGC 2451A and B : Debris disks at 50-80 million years. In: Astrophysical Journal. 2009 ; Vol. 698, No. 2. pp. 1989-2013.
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