TY - JOUR
T1 - New candidate eruptive young stars in LYNDS 1340
AU - Kun, M.
AU - Apai, D.
AU - O'Linger-Luscusk, J.
AU - Moór, A.
AU - Stecklum, B.
AU - Szegedi-Elek, E.
AU - Wolf-Chase, G.
N1 - Publisher Copyright: © 2014. The American Astronomical Society. All rights reserved..
PY - 2014/11/10
Y1 - 2014/11/10
N2 - 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.
AB - 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.
KW - stars: individual (IRAS 02224+7227, 2MASS 02263797+7304575, 2MASS 02325605+7246055)
KW - stars: pre-main sequence
KW - stars: protostars
KW - stars: variables: T Tauri, Herbig Ae/Be
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U2 - 10.1088/2041-8205/795/2/L26
DO - 10.1088/2041-8205/795/2/L26
M3 - Article
SN - 2041-8205
VL - 795
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 2
M1 - L26
ER -