Photometric and Spectroscopic Study of Young Stellar Objects in IC 1848E Region
Abstract
We present a comprehensive analysis combining multi-epoch mid-infrared (MIR) photometric and optical spectroscopic observations of young stellar candidates associated with elongated, elephant trunk-like structures (ETLSs) in the IC 1848E star-forming region. A sample of 15 candidate YSOs, initially identified by Chauhan et al. (2011), was investigated using multi-epoch NEOWISE W1 and W2 photometry to characterize their variability properties. After imposing stringent positional and photometric quality constraints, a final set of eight robust YSOs was retained and classified into three variability categories: non-variable, secular, and stochastic. One source, Star #9, exhibits a pronounced curved variability in the MIR light-curve and color-magnitude domains, indicative of systematic evolution of its circumstellar disk and/or accretion processes. Optical spectroscopic data for this object show strong Hα emission and prominent forbidden lines, providing clear evidence of active mass accretion and outflow phenomena. The combined photometric and spectroscopic diagnostics establish a close link between infrared variability, circumstellar disk evolution, and accretion-driven activity in YSOs associated with ETLSs in IC 1848E.
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BibTeX
@misc{yadav2026photometric,
title = {{Photometric and Spectroscopic Study of Young Stellar Objects in IC 1848E Region}},
author = {Shubham Yadav and Neelam Panwar and Lalita Sharma and C. Rishi},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.10364},
eprint = {2610.10364},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.10364},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Photometric and Spectroscopic Study of Young Stellar Objects in IC 1848E Region
AU - Shubham Yadav
AU - Neelam Panwar
AU - Lalita Sharma
AU - C. Rishi
PY - 2026
DA - 2026/10/07
PB - arXiv
DO - 10.48550/arxiv.2610.10364
UR - https://arxiv.org/abs/2610.10364
AB - We present a comprehensive analysis combining multi-epoch mid-infrared (MIR) photometric and optical spectroscopic observations of young stellar candidates associated with elongated, elephant trunk-like structures (ETLSs) in the IC 1848E star-forming region. A sample of 15 candidate YSOs, initially identified by Chauhan et al. (2011), was investigated using multi-epoch NEOWISE W1 and W2 photometry to characterize their variability properties. After imposing stringent positional and photometric quality constraints, a final set of eight robust YSOs was retained and classified into three variability categories: non-variable, secular, and stochastic. One source, Star #9, exhibits a pronounced curved variability in the MIR light-curve and color-magnitude domains, indicative of systematic evolution of its circumstellar disk and/or accretion processes. Optical spectroscopic data for this object show strong Hα emission and prominent forbidden lines, providing clear evidence of active mass accretion and outflow phenomena. The combined photometric and spectroscopic diagnostics establish a close link between infrared variability, circumstellar disk evolution, and accretion-driven activity in YSOs associated with ETLSs in IC 1848E.
ER -