Zobrazeno 1 - 10
of 477
pro vyhledávání: '"Ojha, D. K."'
Autor:
Damian, Belinda, Jose, Jessy, Das, Swagat R., Gupta, Saumya, Vaikundaraman, Vignesh, Ojha, D. K., Kartha, Sreeja S., Panwar, Neelam, Eswaraiah, Chakali
Young star-forming regions in massive environments are ideal test beds to study the influence of surroundings on the evolution of disks around low-mass stars. We explore two distant young clusters, IC 1848-East and West located in the massive W5 comp
Externí odkaz:
http://arxiv.org/abs/2410.18920
Autor:
Rawat, Vineet, Samal, M. R., Ojha, D. K., Kumar, Brajesh, Sharma, Saurabh, Jose, J., Sagar, Ram, Yadav, R. K.
We present a detailed near-infrared study of an embedded cluster located in the hub of the giant molecular cloud G148.24+00.41 of mass $\sim$10$^5$ $M_\odot$, with the TANSPEC instrument mounted on the 3.6 m Devasthal Optical Telescope. The hub is lo
Externí odkaz:
http://arxiv.org/abs/2408.12969
The S255IR-SMA1 core contains the protostar NIRS3 with a mass of $\sim$20 M$_\odot$. Several years ago, the first burst of luminosity for massive protostars, caused by an episodic accretion event, was recorded here. We have been studying this object
Externí odkaz:
http://arxiv.org/abs/2408.03133
In this paper, we have conducted an investigation focused on a segment of the $Spitzer$ mid-infrared bubble N59, specifically referred to as R1 within our study. Situated in the inner Galactic plane, this region stands out for its hosting of five 6.7
Externí odkaz:
http://arxiv.org/abs/2403.19252
Autor:
Nayak, Prasanta K., Narang, Mayank, Manoj, P., Ojha, D. K., Mathew, Blesson, Baug, T., Chandra, S., Vig, S., Maheswar, G., Kamath, U. S.
The paper demonstrates the spectroscopic and photometric capabilities of the Ultra-Violet Imaging Telescope (UVIT) to study T-Tauri stars (TTSs). We present the first UVIT/Far-UV spectrum of a TTS, TW Hya. Based on C IV line luminosity, we estimated
Externí odkaz:
http://arxiv.org/abs/2403.19478
Autor:
Kumar, R., Moharana, A., Piridi, S., Pradhan, A. C., Hełminiak, K. G., Ikonnikova, N., Dodin, A., Szczerba, R., Giersz, M., Ojha, D. K., Samal, M. R.
Publikováno v:
A&A 685, L6 (2024)
We report a new hot post-asymptotic giant branch (PAGB) star in the Galactic globular cluster (GC) E3, which is one of the first of the identified PAGB stars in a GC to show a binary signature. The star stands out as the brightest source in E3 in the
Externí odkaz:
http://arxiv.org/abs/2403.12907
Autor:
Sicardy, B., Tej, A., Gomes-Junior, A. R., Romanov, F. D., Bertrand, T., Ashok, N. M., Lellouch, E., Morgado, B. E., Assafin, M., Desmars, J., Camargo, J. I. B., Kilic, Y., Ortiz, J. L., Vieira-Martins, R., Braga-Ribas, F., Ninan, J. P., Bhatt, B. C., Kumar, S. Pramod, Swain, V., Sharma, S., Saha, A., Ojha, D. K., Pawar, G., Deshmukh, S., Deshpande, A., Ganesh, S., Jain, J. K., Mathew, S. K., Kumar, H., Bhalerao, V., Anupama, G. C., Barway, S., Brandeker, A., Floren, H. G., Olofsson, G., Bruno, G., Mao, Y. M., Ye, R. H., Zou, Q. Y., Sun, Y. K., Shen, Y. Y., Zhao, J. Y., Grishin, D. N., Romanova, L. V., Marchis, F., Fukui, K., Kukita, R., Benedetti-Rossi, G., Santos-Sanz, P., Dhyani, N., Gokhale, A., Kate, A.
Context - Around the year 2000, Triton's south pole experienced an extreme summer solstice that occurs every about 650 years, when the subsolar latitude reached about 50{\deg}. Bracketing this epoch, a few occultations probed Triton's atmosphere in 1
Externí odkaz:
http://arxiv.org/abs/2402.02476
Autor:
Rawat, Vineet, Samal, M. R., Eswaraiah, Chakali, Wang, Jia-Wei, Elia, Davide, Panigrahy, Sandhyarani, Zavagno, A., Yadav, R. K., Walker, D. L., Jose, J., Ojha, D. K., Zhang, C. P., Dutta, S.
The relative importance of magnetic fields, turbulence, and gravity in the early phases of star formation is still not well understood. We report the first high-resolution dust polarization observations at 850 $\mu$m around the most massive clump, lo
Externí odkaz:
http://arxiv.org/abs/2401.05310
Autor:
Rawat, Vineet, Samal, M. R., Walker, D. L., Ojha, D. K., Tej, A., Zavagno, A., Zhang, C. P., Elia, Davide, Dutta, S., Jose, J., Eswaraiah, C., Sharma, E.
Filamentary flows toward the centre of molecular clouds have been recognized as a crucial process in the formation and evolution of stellar clusters. In this paper, we present a comprehensive observational study that investigates the gas properties a
Externí odkaz:
http://arxiv.org/abs/2401.03202
We present a multiwavelength investigation of the hub-filament system RCW 117 (IRAS 17059-4132), which shows intricate filamentary features in the far-infrared, mapped using Herschel images. We obtain the column density and dust temperature maps for
Externí odkaz:
http://arxiv.org/abs/2311.00477