Very Low-Mass Stars and Brown Dwarfs of the Young Open Cluster IC 2391

David Barrado y Navascués; John R. Stauffer; César Briceño; Brian Patten; Nigel C. Hambly; Joseph D. Adams

doi:10.1086/320359

Very Low-Mass Stars and Brown Dwarfs of the Young Open Cluster IC 2391

David Barrado y Navascués, John R. Stauffer, César Briceño, Brian Patten, Nigel C. Hambly, Joseph D. Adams

School of Physics and Astronomy

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

Abstract

We have identified a large sample of probable low-mass members of the young open cluster IC 2391 based on optical (VRIZ) and infrared (JHKs) photometry. Our sample includes 50 probable members and 82 possible members, both very low-mass stars and brown dwarfs. We also provide accurate positions for these stars and brown dwarf candidates derived from red UK Schmidt plates measured using the microdensitometer SuperCOSMOS. Assuming an age of 53 Myr, we estimate that we have reached a mass of 0.025 Msolar, if the identified objects are indeed members of IC 2391. Based on observations obtained at the Cerro Tololo Inter-American Observatory.

Original language	English
Pages (from-to)	103-114
Journal	Astrophysical Journal Supplement
Volume	134
Issue number	1
DOIs	https://doi.org/10.1086/320359
Publication status	Published - 1 May 2001

Keywords / Materials (for Non-textual outputs)

Galaxy: Open Clusters and Associations: Individual: Alphanumeric: IC 2391
Stars: Low-Mass
Brown Dwarfs

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10.1086/320359

http://adsabs.harvard.edu/abs/2001ApJS..134..103B

Cite this

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title = "Very Low-Mass Stars and Brown Dwarfs of the Young Open Cluster IC 2391",

abstract = "We have identified a large sample of probable low-mass members of the young open cluster IC 2391 based on optical (VRIZ) and infrared (JHKs) photometry. Our sample includes 50 probable members and 82 possible members, both very low-mass stars and brown dwarfs. We also provide accurate positions for these stars and brown dwarf candidates derived from red UK Schmidt plates measured using the microdensitometer SuperCOSMOS. Assuming an age of 53 Myr, we estimate that we have reached a mass of 0.025 Msolar, if the identified objects are indeed members of IC 2391. Based on observations obtained at the Cerro Tololo Inter-American Observatory.",

keywords = "Galaxy: Open Clusters and Associations: Individual: Alphanumeric: IC 2391, Stars: Low-Mass, Brown Dwarfs",

author = "{Barrado y Navascu{\'e}s}, David and Stauffer, {John R.} and C{\'e}sar Brice{\~n}o and Brian Patten and Hambly, {Nigel C.} and Adams, {Joseph D.}",

year = "2001",

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doi = "10.1086/320359",

language = "English",

volume = "134",

pages = "103--114",

journal = "Astrophysical Journal Supplement",

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TY - JOUR

T1 - Very Low-Mass Stars and Brown Dwarfs of the Young Open Cluster IC 2391

AU - Barrado y Navascués, David

AU - Stauffer, John R.

AU - Briceño, César

AU - Patten, Brian

AU - Hambly, Nigel C.

AU - Adams, Joseph D.

PY - 2001/5/1

Y1 - 2001/5/1

N2 - We have identified a large sample of probable low-mass members of the young open cluster IC 2391 based on optical (VRIZ) and infrared (JHKs) photometry. Our sample includes 50 probable members and 82 possible members, both very low-mass stars and brown dwarfs. We also provide accurate positions for these stars and brown dwarf candidates derived from red UK Schmidt plates measured using the microdensitometer SuperCOSMOS. Assuming an age of 53 Myr, we estimate that we have reached a mass of 0.025 Msolar, if the identified objects are indeed members of IC 2391. Based on observations obtained at the Cerro Tololo Inter-American Observatory.

AB - We have identified a large sample of probable low-mass members of the young open cluster IC 2391 based on optical (VRIZ) and infrared (JHKs) photometry. Our sample includes 50 probable members and 82 possible members, both very low-mass stars and brown dwarfs. We also provide accurate positions for these stars and brown dwarf candidates derived from red UK Schmidt plates measured using the microdensitometer SuperCOSMOS. Assuming an age of 53 Myr, we estimate that we have reached a mass of 0.025 Msolar, if the identified objects are indeed members of IC 2391. Based on observations obtained at the Cerro Tololo Inter-American Observatory.

KW - Galaxy: Open Clusters and Associations: Individual: Alphanumeric: IC 2391

KW - Stars: Low-Mass

KW - Brown Dwarfs

U2 - 10.1086/320359

DO - 10.1086/320359

M3 - Article

SN - 0067-0049

VL - 134

SP - 103

EP - 114

JO - Astrophysical Journal Supplement

JF - Astrophysical Journal Supplement

IS - 1

ER -

Very Low-Mass Stars and Brown Dwarfs of the Young Open Cluster IC 2391

Abstract

Keywords / Materials (for Non-textual outputs)

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