32 citations · 193 across the 26 of their papers we have counts for
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Unveiling the First O-Type Bloated Star Candidate through ALMA and EVLA Observations
Rakesh Pandey, Aina Palau, Alvaro Sánchez-Monge +5
We investigate the circumstellar environment of the O-type bloated star candidate IRAS 19520+2759 (I19520) using high-resolution observations from the Atacama Large Millimeter/subm…
Testing the bloated star hypothesis in the massive young stellar object IRAS 19520+2759 through optical and infrared variability
Rakesh Pandey, Aina Palau, Javier Serna +8
Using optical time series with Telescopi Joan Oró (TJO), Gaia, TESS, and NEOWISE archival data, we performed a variability study on the candidate bloated massive young stellar obje…
Initial results of our spectro-photometric monitoring of XZ Tau
Arpan Ghosh, Saurabh Sharma, Joe Philip Ninan +5
We present here initial results of our spectro-photometric monitoring of XZ Tau. During our monitoring period, XZ Tau exhibited several episodes of brightness variations in timesca…
Identifying the population of T-Tauri stars in Taurus: UV-optical synergy
Prasanta K. Nayak, Mayank Narang, Manoj Puravankara +9
With the third data release of the Gaia mission DR3 with its precise photometry and astrometry, it is now possible to study the behaviour of stars at a scale never seen befo…
Post-outburst evolution of bonafide FUor V2493 Cyg: A Spectro-photometric monitoring
Arpan Ghosh, Saurabh Sharma, Joe P. Ninan +11
We present here the results of eight years of our near-simultaneous optical/near-infrared spectro-photometric monitoring of bonafide FUor candidate `V2493 Cyg' starting from 2013 S…
Structural Analysis of Open Cluster Bochum 2
Harmeen Kaur, Saurabh Sharma, Alok Durgapal +5
We present the results from our deep optical photometric observations of Bochum 2 (Boc2) star cluster obtained using the m Devasthal Fast Optical Telescope along with archival…
Spectroscopy of 9 eruptive young variables using TANSPEC
Arpan Ghosh, Saurabh Sharma, Joe P. Ninan +8
In recent times, 3.6m Devasthal Optical Telescope (DOT) has installed an optical to near infra-red spectrograph, TANSPEC, which provides spectral coverage from 0.55-2.5 microns. Us…
Teutsch 76: a Deep Near-Infrared Study
Saurabh Sharma, Lokesh Dewangan, Neelam Panwar +9
We have performed a detailed analysis on the Teutsch 76 (T76) open cluster using the deep near-infrared (NIR) observations taken with the TANSPEC instrument mounted on the 3.6m Dev…
Gaia 20eae: A newly discovered episodically accreting young star
Arpan Ghosh, Saurabh Sharma, Joe. P. Ninan +18
The Gaia Alert System issued an alert on 2020 August 28, on Gaia 20eae when its light curve showed a 4.25 magnitude outburst. We present multi-wavelength photometric and spec…
Photometric variability of the pre-main sequence stars towards the Sh 2-190 region
Tirthendu Sinha, Saurabh Sharma, Neelam Panwar +7
We present the results from our time-series imaging data taken with the 1.3m Devasthal fast optical telescope and 0.81m Tenagara telescope in , , bands covering a…
Star formation and evolution of blister-type H{\sc ii} region Sh2-112
Neelam Panwar, Saurabh Sharma, D. K. Ojha +4
We report the observational findings of the Sh2-112 H{\sc ii} region by using the multiwavelength data analysis ranging from optical to radio wavelengths. This region is powered by…
Further milliarcsecond resolution results on cool giants and binary stars from lunar occultations at Devashtal
A. Richichi, Saurabh Sharma, T. Sinha +5
We report on 26 lunar occultation events observed in the context of a program started at Devasthal in 2017. In addition to the customary observations with the 1.3-m telescope, we r…
Variable stars in the Sh 2-170 HII region
Tirthendu Sinha, Saurabh Sharma, A. K. Pandey +7
We present multi-epoch deep (20 mag) ~band photometric monitoring of the Sh 2-170 star-forming region to understand the variability properties of pre-main-sequence (PM…
Stellar cores in the Sh 2-305 H II region
Rakesh Pandey, Saurabh Sharma, Neelam Panwar +6
Using our deep optical and near-infrared photometry along with multiwavelength archival data, we here present a detailed study of the Galactic H II region Sh 2-305, to understand t…
An Infrared Photometric and Spectroscopic Study of Post-AGB Stars
V. Venkata Raman, B. G. Anandarao, P. Janardhan +1
We present here mid-infrared (IR) spectra and modeling of the spectral energy distribution (SED) of a selection of post-Asymptotic Giant Branch (PAGB) stars. The mid-IR s…