New candidate eruptive young stars in LYNDS 1340

M. Kun, Daniel Apai, J. O'Linger-Luscusk, A. Moór, B. Stecklum, E. Szegedi-Elek, G. Wolf-Chase

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We report on the discovery of three candidate eruptive young stars, found during our comprehensive multi-wavelength study of the young stellar population of the dark cloud L1340. These stars are as follows. (1) IRAS 02224+7227 (2MASS 02270555+7241167, HH 487S) exhibited FUor-like spectrum in our low-resolution optical spectra. The available photometric data restrict its luminosity to 23 L < L bol < 59 L . (2) 2MASS 02263797+7304575, identified as a classical T Tauri star during our Hα survey, exhibited an EXor-type brightening in 2005 November at the time of the Sloan Digital Sky Survey observations of the region. (3) 2MASS 02325605+7246055, a low-mass embedded young star, associated with a fan-shaped infrared nebula, underwent an outburst between the DSS 1 and DSS 2 surveys, leading to the appearance of a faint optical nebula. Our [S II] and Hα images, as well as the Spitzer Infrared Array Camera 4.5 μm images, revealed Herbig-Haro objects associated with this star. Our results suggest that amplitudes and timescales of outbursts do not necessarily correlate with the evolutionary stage of the stars.

Original languageEnglish (US)
Article numberL26
JournalAstrophysical Journal Letters
Volume795
Issue number2
DOIs
StatePublished - Nov 10 2014

Fingerprint

stars
outburst
nebulae
young population
Herbig-Haro objects
T Tauri stars
wavelength
timescale
Infrared Astronomy Satellite
fans
optical spectrum
cameras
luminosity
young
wavelengths

Keywords

  • stars: individual (IRAS 02224+7227, 2MASS 02263797+7304575, 2MASS 02325605+7246055)
  • stars: pre-main sequence
  • stars: protostars
  • stars: variables: T Tauri, Herbig Ae/Be

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Kun, M., Apai, D., O'Linger-Luscusk, J., Moór, A., Stecklum, B., Szegedi-Elek, E., & Wolf-Chase, G. (2014). New candidate eruptive young stars in LYNDS 1340. Astrophysical Journal Letters, 795(2), [L26]. https://doi.org/10.1088/2041-8205/795/2/L26

New candidate eruptive young stars in LYNDS 1340. / Kun, M.; Apai, Daniel; O'Linger-Luscusk, J.; Moór, A.; Stecklum, B.; Szegedi-Elek, E.; Wolf-Chase, G.

In: Astrophysical Journal Letters, Vol. 795, No. 2, L26, 10.11.2014.

Research output: Contribution to journalArticle

Kun, M, Apai, D, O'Linger-Luscusk, J, Moór, A, Stecklum, B, Szegedi-Elek, E & Wolf-Chase, G 2014, 'New candidate eruptive young stars in LYNDS 1340', Astrophysical Journal Letters, vol. 795, no. 2, L26. https://doi.org/10.1088/2041-8205/795/2/L26
Kun M, Apai D, O'Linger-Luscusk J, Moór A, Stecklum B, Szegedi-Elek E et al. New candidate eruptive young stars in LYNDS 1340. Astrophysical Journal Letters. 2014 Nov 10;795(2). L26. https://doi.org/10.1088/2041-8205/795/2/L26
Kun, M. ; Apai, Daniel ; O'Linger-Luscusk, J. ; Moór, A. ; Stecklum, B. ; Szegedi-Elek, E. ; Wolf-Chase, G. / New candidate eruptive young stars in LYNDS 1340. In: Astrophysical Journal Letters. 2014 ; Vol. 795, No. 2.
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abstract = "We report on the discovery of three candidate eruptive young stars, found during our comprehensive multi-wavelength study of the young stellar population of the dark cloud L1340. These stars are as follows. (1) IRAS 02224+7227 (2MASS 02270555+7241167, HH 487S) exhibited FUor-like spectrum in our low-resolution optical spectra. The available photometric data restrict its luminosity to 23 L < L bol < 59 L . (2) 2MASS 02263797+7304575, identified as a classical T Tauri star during our Hα survey, exhibited an EXor-type brightening in 2005 November at the time of the Sloan Digital Sky Survey observations of the region. (3) 2MASS 02325605+7246055, a low-mass embedded young star, associated with a fan-shaped infrared nebula, underwent an outburst between the DSS 1 and DSS 2 surveys, leading to the appearance of a faint optical nebula. Our [S II] and Hα images, as well as the Spitzer Infrared Array Camera 4.5 μm images, revealed Herbig-Haro objects associated with this star. Our results suggest that amplitudes and timescales of outbursts do not necessarily correlate with the evolutionary stage of the stars.",
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