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The Young Stellar Population of LYNDS 1340. An Infrared View

Kun, M. and Wolf-Chase, G. and Moór, A. and Apai, D. and Balog, Z. and O’Linger-Luscusk, J. and Moriarty-Schieven, G. H. (2016) The Young Stellar Population of LYNDS 1340. An Infrared View. Astrophysical Journal Supplement Series, 224 (2). Art. No. 22. ISSN 0067-0049.

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We present results of an infrared study of the molecular cloud Lynds 1340, forming three groups of low- and intermediate-mass stars. Our goals are to identify and characterize the young stellar population of the cloud, study the relationships between the properties of the cloud and the emergent stellar groups, and integrate L1340 into the picture of the star-forming activity of our Galactic environment. We selected candidate young stellar objects (YSOs) from the Spitzer and WISE databases using various published color criteria and classified them based on the slope of the spectral energy distribution (SED). We identified 170 Class II, 27 flat SED, and 45 Class 0/I sources. High angular resolution near-infrared observations of the RNO 7 cluster, embedded in L1340, revealed eight new young stars of near-infrared excess. The surface density distribution of YSOs shows three groups, associated with the three major molecular clumps of L1340, each consisting of ≾100 members, including both pre-main-sequence stars and embedded protostars. New Herbig–Haro objects were identified in the Spitzer images. Our results demonstrate that L1340 is a prolific star-forming region of our Galactic environment in which several specific properties of the intermediate-mass mode of star formation can be studied in detail.

Item Type:Article
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URLURL TypeDescription Paper
Apai, D.0000-0003-3714-5855
Additional Information:© 2016 The American Astronomical Society. Received 2015 December 16; accepted 2016 February 17; published 2016 June 1. This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. This research utilized observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by the Max-Planck Institut für Astronomie and the Instituto de Astrofísica de Andalucía (CSIC). This research has made use of the NASA/IPAC Infrared Science Archive, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. Our research has benefited from the VizieR catalog access tool, CDS, Strasbourg, France. Financial support from the Hungarian OTKA grant K81966 and K101393 is acknowledged. This work was partly supported by the Momentum grant of the MTA CSFK Lendület Disk Research Group.
Funding AgencyGrant Number
Hungarian Scientific Research Fund (OTKA)K81966
Hungarian Scientific Research Fund (OTKA)K101393
MTA CSFK Lendület Disk Research GroupUNSPECIFIED
Subject Keywords:ISM: clouds – ISM: individual objects (L1340) – stars: formation – stars: pre-main sequence – stars: protostars
Issue or Number:2
Record Number:CaltechAUTHORS:20160916-144606490
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Official Citation:M. Kun et al 2016 ApJS 224 22
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70406
Deposited By: Tony Diaz
Deposited On:19 Sep 2016 00:21
Last Modified:09 Mar 2020 13:18

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