Spitzer 24 μm survey of debris disks in the pleiades

Nadya Gorlova; George H. Rieke; James Muzerolle; John R. Stauffer; Nick Siegler; Erick T. Young; John H. Stansberry

doi:10.1086/506373

Spitzer 24 μm survey of debris disks in the pleiades

Nadya Gorlova, George H. Rieke, James Muzerolle, John R. Stauffer, Nick Siegler, Erick T. Young, John H. Stansberry

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

58 Scopus citations

Abstract

We performed a 24 μm 2° × 1° survey of the Pleiades cluster, using the MIPS instrument on Spitzer. Fifty-four members ranging in spectral type from B8 to K6 show 24 μm fluxes consistent with bare photospheres. All Be stars show excesses attributed to free-free emission in their gaseous envelopes. Five early-type stars and four solar-type stars show excesses indicative of debris disks. We find a debris disk fraction of 25% for B-A members and 10% for F-K3 ones. These fractions appear intermediate between those for younger clusters and for the older field stars. They indicate a decay with age of the frequency of the dust production events inside the planetary zone, with similar timescales for solar-mass stars as have been found previously for A stars.

Original language	English (US)
Pages (from-to)	1028-1042
Number of pages	15
Journal	Astrophysical Journal
Volume	649
Issue number	2 I
DOIs	https://doi.org/10.1086/506373
State	Published - Oct 1 2006

Keywords

Circumstellar matter
Infrared: stars
Open clusters and associations: individual (Pleiades)
Planetary systems: formation

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/506373

Cite this

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title = "Spitzer 24 μm survey of debris disks in the pleiades",

abstract = "We performed a 24 μm 2° × 1° survey of the Pleiades cluster, using the MIPS instrument on Spitzer. Fifty-four members ranging in spectral type from B8 to K6 show 24 μm fluxes consistent with bare photospheres. All Be stars show excesses attributed to free-free emission in their gaseous envelopes. Five early-type stars and four solar-type stars show excesses indicative of debris disks. We find a debris disk fraction of 25% for B-A members and 10% for F-K3 ones. These fractions appear intermediate between those for younger clusters and for the older field stars. They indicate a decay with age of the frequency of the dust production events inside the planetary zone, with similar timescales for solar-mass stars as have been found previously for A stars.",

keywords = "Circumstellar matter, Infrared: stars, Open clusters and associations: individual (Pleiades), Planetary systems: formation",

author = "Nadya Gorlova and Rieke, {George H.} and James Muzerolle and Stauffer, {John R.} and Nick Siegler and Young, {Erick T.} and Stansberry, {John H.}",

year = "2006",

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T1 - Spitzer 24 μm survey of debris disks in the pleiades

AU - Gorlova, Nadya

AU - Rieke, George H.

AU - Muzerolle, James

AU - Stauffer, John R.

AU - Siegler, Nick

AU - Young, Erick T.

AU - Stansberry, John H.

PY - 2006/10/1

Y1 - 2006/10/1

N2 - We performed a 24 μm 2° × 1° survey of the Pleiades cluster, using the MIPS instrument on Spitzer. Fifty-four members ranging in spectral type from B8 to K6 show 24 μm fluxes consistent with bare photospheres. All Be stars show excesses attributed to free-free emission in their gaseous envelopes. Five early-type stars and four solar-type stars show excesses indicative of debris disks. We find a debris disk fraction of 25% for B-A members and 10% for F-K3 ones. These fractions appear intermediate between those for younger clusters and for the older field stars. They indicate a decay with age of the frequency of the dust production events inside the planetary zone, with similar timescales for solar-mass stars as have been found previously for A stars.

AB - We performed a 24 μm 2° × 1° survey of the Pleiades cluster, using the MIPS instrument on Spitzer. Fifty-four members ranging in spectral type from B8 to K6 show 24 μm fluxes consistent with bare photospheres. All Be stars show excesses attributed to free-free emission in their gaseous envelopes. Five early-type stars and four solar-type stars show excesses indicative of debris disks. We find a debris disk fraction of 25% for B-A members and 10% for F-K3 ones. These fractions appear intermediate between those for younger clusters and for the older field stars. They indicate a decay with age of the frequency of the dust production events inside the planetary zone, with similar timescales for solar-mass stars as have been found previously for A stars.

KW - Circumstellar matter

KW - Infrared: stars

KW - Open clusters and associations: individual (Pleiades)

KW - Planetary systems: formation

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JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 I

ER -

Spitzer 24 μm survey of debris disks in the pleiades

Abstract

Keywords

ASJC Scopus subject areas

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