As part of the B-fields In Star-forming Region Observations survey, we present James Clerk Maxwell Telescope
(JCMT) 850 μm polarimetric observations toward the Orion integral-shaped filament (ISF) that covers three portions ...
An analysis of Gaia DR3 data of 67 R stars is presented and 57 of them are at high galactic latitudes. Three new variable stars are found. The long period luminous variable R stars and R8 stars may be variable carbon stars ...
Ca II K observations of the Sun have a great potential for probing the Sun’s magnetism and activity, as well as for reconstructing solar irradiance. The Kodaikanal Solar Observatory (KoSO) in India, houses one of the most ...
Bossion, D; Sarangi, A; Aalto, S; Esmerian, C; Hashemi, S. R; Knudsen, K. K; Vlemmings, W; Nyman, G(EDP Sciences, 2024-12)
Context. Cosmic dust is ubiquitous in astrophysical environments, where it significantly influences the chemistry and the spectra. Dust grains are likely to grow through the accretion of atoms and molecules from the gas-phase ...
Gutierrez, Claudia P; Mattila, S; Lundqvist, P; Dessart, Luc; Gonzalez-Gaitan, S; Jonker, Peter G; Dong, Subo; Coppejans, Deanne; Chen, Ping; Charalampopoulos, Panos; Elias-Rosa, N; Reynolds, Thomas M; Kochanek, C. S; Fraser, M; Pastorello, A; Gromadzki, Mariusz; Neustadt, Jack; Benetti, S; Kankare, E; Kangas, T; Kotak, R; Stritzinger, M. D; Wevers, Thomas; Zhang, B; Bersier, D; Bose, Subhash; Buckley, David A. H; Dastidar, Raya; Gangopadhyay, Anjasha; Hamanowicz, Aleksandra; Kollmeier, Juna A; Mao, Jirong; Misra, Kuntal; Potter, Stephen. B; Prieto, Jose L; Romero-Colmenero, Encarni; Singh, Mridweeka; Somero, Auni; Terreran, Giacomo; Vaisanen, Petri; Wyrzykowski, Lukasz(American Astronomical Society, 2024-12-20)
We present ultraviolet, optical, and near-infrared photometric and optical spectroscopic observations of the luminous fast blue optical transient (LFBOT) CSS 161010:045834–081803 (CSS 161010). The transient was found in a ...
We present 850 μm polarization observations of the IC 348 star-forming region in the Perseus molecular cloud as part of the B-fields In STar-forming Region Observation survey. We study the magnetic properties of two cores ...
We aim to constrain the average star formation associated with neutral hydrogen gas reservoirs at cosmic noon. We used a unprecedented sample of 1716 high-column-density, damped Ly-α absorbers (DLAs) from the Sloan Digital ...
Hernandez-García, L; Munoz-Arancibia, A. M; Lira, P; Bruni, G; Cuadra, J; Arevalo, P; Sanchez-Saez, P; Bernal, S; Bauer, Franz E; Catelan, Marcio; Panessa, F; Pavez-Herrera, M; Ricci, Claudio; Reyes-Jainaga, I; Ailawadhi, Bhavya; Chavushyan, V; Dastidar, R; Deconto-Machado, A; Forster, F; Gangopadhyay, A; Garcia-Perez, A; Marquez, I; Masegosa, J; Misra, K; Patino-Alvarez, V. M; Puig-Subira, M; Rodi, J; Singh, M(EDP Sciences, 2024-12)
With a growing number of facilities able to monitor the entire sky and produce light curves with a cadence of days, in recent years there has been an increased rate of detection of sources whose variability deviates from ...
Small-scale brightenings (SBs) are commonly observed in the transition region (TR) that separates the solar chromosphere from the corona. These brightenings, omnipresent in active region patches known as "moss" regions, ...
In this work, we have carried out a systematic analysis of the Very Large Array Sky Survey (VLASS) quick look catalogs together with Gaia DR3 to identify the optical counterparts of 3 GHz radio emitters within 500 pc to ...
The transient Galactic black hole candidate Swift J1727.8-1613 went through an outburst for the very first time in 2023 August and lasted for almost 6 months. We study the timing and spectral properties of this source using ...
In 2023 April, a low-latitude aurora observed by the all-sky camera at Hanle, Ladakh, India (33°14'N geographic latitude), generated significant interest. This was the first such aurora recorded from the Indian region in ...
The Small Magellanic Cloud (SMC) is an irregular dwarf galaxy that has recently undergone an interaction with the Large Magellanic Cloud. The young massive stars in the SMC formed in the disturbed low-metallicity environment ...
The morphology and the characteristic scale of polarized structures provide crucial insights into the mechanisms that drive turbulence and maintain magnetic fields in magneto-ionic plasma. We aim to establish the efficacy ...
Archana Soam; Yuen, Ka Ho; Stephens, Ian; Law, Chi-Yan; Ho, Ka Wai; Coude, Simon(American Astronomical Society, 2024-12-01)
Magnetic fields (B-fields) are ubiquitous in the interstellar medium (ISM), and they play an essential role in the formation of molecular clouds and subsequent star formation. However, B-fields in interstellar environments ...
Coherent radio emission with properties similar to planetary auroral signals has been reported from GJ 1151, a quiescent, slow-rotating mid-M star, by the LOFAR Two-meter (120–170 MHz) Sky Survey. The observed LOFAR emission ...
We investigate the novel features of gravitational wave solutions in f(R) gravity under proper gauge considerations in the shifted Ricci scalar background curvature (R1+ϵ). The solution is further explored to study the ...
Khuntia, Soumyaranjan; Mishra, Wageesh; Wang, Yuming; Mishra, S. K; Nieves-Chinchilla, Teresa; Lyu, Shaoyu(Oxford University Press on behalf of Royal Astronomical Society, 2024-12)
Most earlier studies have been limited to estimating the kinematic evolution of coronal mass ejections (CMEs), and only limited efforts have been made to investigate their thermodynamic evolution. We focus on the interplay ...
Zhang, Siju; Liu, Tie; Wang, Ke; Zavagno, A; Garay, Guido; Liu, Hong-li; Xu, Feng-wei; Liu, Xunchuan; Sanhueza, Patricio; Archana Soam; Zhou, Jian-wen; Li, Shanghuo; Goldsmith, Paul F; Zhang, Yong; Chibueze, J. O; Lee, Chang Won; Hwang, Jihye; Bronfman, Leonardo; Dewangan, L. K(Oxford University Press on behalf of Royal Astronomical Society, 2024-12)
Fragmentation and evolution for the molecular shells of the compact H II regions are less explored compared to their evolved counterparts. We map nine compact H II regions with a typical diameter of 0.4 pc that are surrounded ...
Ikonnikova, N. P; Parthasarathy, M; Shaposhnikov, Ivan A; Hubrig, S; Sarkar, Geetanjali(Springer Nature, 2024-12)
An analysis of the high-resolution (R∼48000) optical spectrum of hot (B1Ibe) post-AGB star LS 4331 (IRAS 17381‑1616) is presented. The detailed identification of the observed absorption and emission features in the wavelength ...