Zobrazeno 1 - 10
of 869
pro vyhledávání: '"Vig S"'
Low radio frequency spectral index measurements are a powerful tool to distinguish between different emission mechanisms and, in turn, to understand the nature of the sources. Besides the standard method of estimating the ``broadband" spectral index
Externí odkaz:
http://arxiv.org/abs/2405.18978
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
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
Autor:
Lakshmipathaiah, K., Vig, S., Ashby, Matthew L. N., Hora, Joseph L., Kang, Miju, Gorthi, Rama Krishna Sai S.
We apply machine learning algorithms to classify Infrared (IR)-selected targets for NASA's upcoming SPHEREx mission. In particular, we are interested in classifying Young Stellar Objects (YSOs), which are essential for understanding the star formatio
Externí odkaz:
http://arxiv.org/abs/2309.12957
RAFGL2591 is a massive star-forming complex in the Cygnus-X region comprising of a cluster of embedded protostars and young stellar objects located at a distance of 3.33 kpc. We investigate low-frequency radio emission from the protostellar jet assoc
Externí odkaz:
http://arxiv.org/abs/2308.03329
The star-forming activity in the HII region RCW 42 is investigated using multiple wavebands, from near-infrared to radio wavelengths. Located at a distance of 5.8 kpc, this southern region has a bolometric luminosity of 1.8 $\times$ 10$^6$ L$_{\odot}
Externí odkaz:
http://arxiv.org/abs/2207.14040
Globular clusters being old and densely packed serve as ideal laboratories to test stellar evolution theories. Although there is enormous literature on globular clusters in optical bands, studies in the ultraviolet (UV) regime are sparse. In this wor
Externí odkaz:
http://arxiv.org/abs/2205.13839
Autor:
Beltrán, M. T., Rivilla, V. M., Cesaroni, R., Galli, D., Moscadelli, L., Ahmadi, A., Beuther, H., Etoka, S., Goddi, C., Klaassen, P. D., Kuiper, R., Kumar, M. S. N., Lorenzani, A., Peters, T., Sánchez-Monge, Á., Schilke, P., van der Tak, F., Vig, S.
Publikováno v:
A&A 659, A81 (2022)
Context. To better understand the formation of high-mass stars, it is fundamental to investigate how matter accretes onto young massive stars, how it is ejected, and how all this differs from the low-mass case. The massive protocluster G31.41+0.31 is
Externí odkaz:
http://arxiv.org/abs/2201.10438
Autor:
Beltrán, M. T., Rivilla, V. M., Cesaroni, R., Maud, L. T., Galli, D., Moscadelli, L., Lorenzani, A., Ahmadi, A., Beuther, H., Csengeri, T., Etoka, S., Goddi, C., Klaassen, P. D., Kuiper, R., Kumar, M. S. N., Peters, T., Sánchez-Monge, Á., Schilke, P., van der Tak, F., Vig, S., Zinnecker, H.
Publikováno v:
A&A 648, A100 (2021)
Context. ALMA observations at 1.4 mm and 0.2'' (750au) angular resolution of the Main core in the high-mass star forming region G31.41+0.31 have revealed a puzzling scenario: on the one hand, the continuum emission looks very homogeneous and the core
Externí odkaz:
http://arxiv.org/abs/2103.04953
Autor:
Suzuki, T., Oyabu, S., Ghosh, S. K., Ojha, D. K., Kaneda, H., Maeda, H., Nakagawa, T., Ninan, J. P., Vig, S., Hanaoka, M., Saito, F., Fujiwara, S., Kanayama, T.
Aims: To investigate properties of [CII]158 $\mu$m emission of RCW36 in a dense filamentary cloud. Methods: [CII] observations of RCW36 covering an area of ~30 arcmin$\times$30 arcmin were carried out with a Fabry-P\'{e}rot spectrometer aboard a 100-
Externí odkaz:
http://arxiv.org/abs/2103.01042