Zobrazeno 1 - 10
of 767
pro vyhledávání: '"Yadav R K"'
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
Autor:
Eden, D. J., Liu, Tie, Moore, T. J. T., Di Francesco, J., Fuller, G., Kim, Kee-Tae, Li, Di, Liu, S. -Y., Plume, R., Tatematsu, Ken'ichi, Thompson, M. A., Wu, Y., Bronfman, L., Butner, H. M., Currie, M. J., Garay, G., Goldsmith, P. F., Hirano, N., Johnstone, D., Juvela, M., Lai, S. -P., Lee, C. W., Mannfors, E. E., Olguin, F., Pattle, K., Park, Geumsook, Polychroni, D., Rawlings, M., Rigby, A. J., Sanhueza, P., Traficante, A., Urquhart, J. S., Weferling, B., White, G. J., Yadav, R. K.
We have investigated the physical properties of Planck Galactic Cold Clumps (PGCCs) located in the Galactic Plane, using the JCMT Plane Survey (JPS) and the SCUBA-2 Continuum Observations of Pre-protostellar Evolution (SCOPE) survey. By utilising a s
Externí odkaz:
http://arxiv.org/abs/2405.00493
Autor:
Belwal, Kuldeep, Bisht, D., Bisht, Mohit Singh, Rangwal, Geeta, Raj, Ashish, Dattatrey, Arvind K., Yadav, R. K. S., Bhatt, B. C.
We conducted a photometric and kinematic analysis of the young open cluster NGC 2345 using CCD \emph{UBV} data from 2-m Himalayan Chandra Telescope (HCT), \emph{Gaia} Data Release 3 (DR3), 2MASS, and the APASS datasets. We found 1732 most probable cl
Externí odkaz:
http://arxiv.org/abs/2403.04532
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:
Yadav, R. K. S., Dattatrey, Arvind K., Rangwal, Geeta, Subramaniam, Annapurni, Bisht, D., Sagar, Ram
We present the study of four FUV stars in the field of open cluster NGC 2420 using the Ultra Violet Imaging Telescope (UVIT) mounted on AstroSat. The three stars 525, 527, and 560 are members, while star 646 is a non-member of the cluster. To charact
Externí odkaz:
http://arxiv.org/abs/2312.06483
Autor:
Toledano--Juárez, I., de la Fuente, E., Kawata, K., Trinidad, M. A., Tafoya, D., Yamagishi, M., Takekawa, S., Ohnishi, M., Nishimura, A., Kato, S., Sako, T., Takita, M., Yadav, R. K.
Publikováno v:
Proceedings of Science, 2023, 631, 1-8. https://pos.sissa.it/444/
Cygnus-X is considered a region of interest for high-energy astrophysics, since the Cygnus OB2 association has been confirmed as a PeVatron in the Cygnus cocoon. In this research note, we present new high-resolution (16'') $^{12,13}$CO(J=1$\rightarro
Externí odkaz:
http://arxiv.org/abs/2310.15807
In the present study, we identified an extremely low-mass white dwarf as a companion to a low luminous blue straggler star within the Galactic globular cluster NGC 362. To conduct the analysis, we utilized data obtained from various sources, includin
Externí odkaz:
http://arxiv.org/abs/2308.13602
Autor:
Pandey, S. B., Kumar, Amit, Reddy, B. K., Yadav, S., Nanjappa, N., Aryan, Amar, Gupta, Rahul, Panwar, Neelam, Yadav, R. K. S.
The 4K$\times$4K CCD Imager is the first light instrument for the 3.6m Devasthal Optical Telescope and is producing broad-band imaging observations of many Galactic and extra-galactic sources since 2015-2016. Capabilities of the CCD Imager are demons
Externí odkaz:
http://arxiv.org/abs/2306.13698
Autor:
Ghosh, Arpan, Sharma, Saurabh, Ninan, Joe P., Ojha, Devendra K., Bhatt, Bhuwan C., Sahu, D. K., Baug, Tapas, Yadav, R. K., Irawati, Puji, Gour, A. S., Panwar, Neelam, Pandey, Rakesh, Sinha, Tirthendu, Verma, Aayushi
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 September to 2021 June. During our optical monitoring period (between O
Externí odkaz:
http://arxiv.org/abs/2306.00759
Autor:
Gangi, M., Nisini, B., Manara, C. F., France, K., Antoniucci, S., Biazzo, K., Giannini, T., Herczeg, G. J., Alcalá, J. M., Frasca, A., Maucó, K., Campbell-White, J., Siwak, M., Venuti, L., Schneider, P. C., Kóspál, Á., Garatti, A. Caratti o, Fiorellino, E., Rigliaco, E., Yadav, R. K.
Publikováno v:
A&A 675, A153 (2023)
Observing the spatial distribution and excitation processes of atomic and molecular gas in the inner regions (< 20 au) of young (< 10 Myr) protoplanetary disks helps us to understand the conditions for the formation and evolution of planetary systems
Externí odkaz:
http://arxiv.org/abs/2305.18940