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  • Insight-HXMT view of the black hole candidate swift J1727.8–1613 during its outburst in 2023 
    Chatterjee, Kaushik; Mondal, Santanu; Singh, Chandra B; Sugizaki, Mutsumi (American Astronomical Society, 2024-12-20)
    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 ...
  • Low-latitude auroras: insights from 2023 april 23 solar storm 
    Vichare, Geeta; Bhaskar, Ankush; Rawat, Rahul; Yadav, Virendra; Mishra, Wageesh; Angchuk, D; Singh, Anand Kumar (American Astronomical Society, 2024-12-20)
    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 ...
  • CSS 161010: A luminous fast blue optical transient with broad blueshifted hydrogen lines 
    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 ...
  • A tale of three: magnetic fields along the orion integral-shaped filament as revealed by the JCMT BISTRO survey 
    Wu, Jintai; Qiu, Keping; Poidevin, Frederick; Bastien, Pierre; Liu, Junhao; Ching, Tao-Chung; Bourke, Tyler L; Ward-Thompson, Derek; Pattle, Kate; Johnstone, Doug; Koch, Patrick M; Li, Hua-Bai; Berry, David; Furuya, Ray S; Coude, Simon; Kwon, Woojin; Lin, Sheng-Jun; Wang, Jia-Wei; Hasegawa, Tetsuo; Lai, Shih-Ping; Fiege, Jason; Kim, Kee-Tae; Byun, Do-Young; Chen, Zhiwei; Chen, Huei-Ru Vivien; Chen, Wen Ping; Chen, Mike; Cho, Jungyeon; Choi, Youngwoo; Choi, Yunhee; Choi, Minho; Chrysostomou, Antonio; Kim, Jongsoo; Fissel, Laura M; Chung, Eun Jung; Dai, Sophia; Di Francesco, James; Diep, Pham Ngoc; Doi, Yasuo; Franzmann, Erica; Friberg, Per; Friesen, Rachel; Fuller, Gary; Kim, Hyosung; Gledhill, Tim; Matsumura, Masafumi; Graves, Sarah; Greaves, Jane; Griffin, Matt; Gu, Qilao; Han, Ilseung; Hayashi, Saeko; Hoang, Thiem; Houde, Martin; Kim, Gwanjeong; Inoue, Tsuyoshi; Inutsuka, Shu-ichiro; Matthews, Brenda; Iwasaki, Kazunari; Jeong, Il-Gyo; Konyves, Vera; Kang, Ji-hyun; Kang, Miju; Karoly, Janik; Kataoka, Akimasa; Kirchschlager, Florian; Kawabata, Koji; Kim, Shinyoung; Kim, Mi-Ryang; Moriarty-Schieven, Gerald; Kim, Kyoung Hee; Kirk, Jason; Kobayashi, Masato I. N; Kusune, Takayoshi; Kwon, Jungmi; Nagata, Tetsuya; Tram, Le Ngoc; Lacaille, Kevin; Law, Chi-Yan; Lee, Hyeseung; Lee, Chin-Fei; Lee, Sang-Sung; Lee, Jeong-Eun; Li, Dalei; Li, Di; Li, Guangxing; Liu, Sheng-Yuan; Tsukamoto, Yusuke; Nakamura, Fumitaka; Liu, Tie; Liu, Hong-Li; Lu, Xing; Lyo, A-Ran; Mairs, Steve; Nakanishi, Hiroyuki; Ngoc, Nguyen Bich; Ohashi, Nagayoshi; Park, Geumsook; Viti, Serena; Parsons, Harriet; Arzoumanian, Doris; Peretto, Nicolas; Priestley, Felix; Pyo, Tae-Soo; Qian, Lei; Rao, Ramprasad; Rawlings, Jonathan; Rawlings, Mark; Retter, Brendan; Wang, Hongchi; Richer, John; Rigby, Andrew; Lee, Chang Won; Sadavoy, Sarah; Saito, Hiro; Savini, Giorgio; Seta, Masumichi; Sharma, Ekta; Shimajiri, Yoshito; Shinnaga, Hiroko; Whitworth, Anthony; Tang, Ya-Wen; Tang, Xindi; Thuong, Hoang Duc; Fanciullo, Lapo; Tomisaka, Kohji; Xie, Jinjin; Yang, Meng-Zhe; Yen, Hsi-Wei; Yoo, Hyunju; Onaka, Takashi; Duan, Hao-Yuan; Yuan, Jinghua; Yun, Hyeong-Sik; Zenko, Tetsuya; Zhang, Guoyin; Zhang, Chuan-Peng; Zhang, Yapeng; Zhou, Jianjun; Zhu, Lei; Looze, Ilse de; Andre, Philippe; Duan, Yan; Hwang, Jihye; Dowell, C. Darren; Eyres, Stewart; Falle, Sam; Robitaille, Jean-Francois; van Loo, Sven; Gouellec, Valentin J. M. Le; Archana Soam; Tamura, Motohide; Tahani, Mehrnoosh; Eden, David; Eswaraiah, Chakali (American Astronomical Society, 2024-12-20)
    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 ...
  • Transition region brightening in a moss region and their relation with lower atmospheric dynamics 
    Ram, Bhinva; Samanta, T; Chen, Yajie; Sterling, Alphonse C; Joshi, Jayant; Yurchyshyn, Vasyl; Chitta, L. P; Pant, Vaibhav (American Astronomical Society, 2024-12-10)
    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, ...
  • The JCMT BISTRO survey: The magnetic fields of the IC 348 star-forming region 
    Choi, Youngwoo; Kwon, Woojin; Pattle, Kate; Arzoumanian, Doris; Bourke, Tyler L; Hoang, Thiem; Hwang, Jihye; Koch, Patrick M; Sadavoy, Sarah; Bastien, Pierre; Furuya, Ray; Kwon, Jungmi; Lacaille, Kevin; Law, Chi-Yan; Lee, Chang Won; Lee, Hyeseung; Lee, Chin-Fei; Lee, Jeong-Eun; Lee, Sang-Sung; Li, Dalei; Li, Di; Viti, Serena; Onaka, Takashi; Li, Guangxing; Li, Hua-bai; Lin, Sheng-Jun; Liu, Hong-Li; Liu, Tie; Liu, Sheng-Yuan; Liu, Junhao; Longmore, Steven; Lu, Xing; Wang, Hongchi; Lyo, A-Ran; Park, Geumsook; Mairs, Steve; Matsumura, Masafumi; Matthews, Brenda; Moriarty-Schieven, Gerald; Nagata, Tetsuya; Nakamura, Fumitaka; Parsons, Harriet; Peretto, Nicolas; Wang, Jia-Wei; Priestley, Felix; Pyo, Tae-Soo; Qian, Lei; Lai, Shih-Ping; Rao, Ramprasad; Rawlings, Jonathan; Rawlings, Mark; Retter, Brendan; Richer, John; Rigby, Andrew; Whitworth, Anthony; Saito, Hiro; Savini, Giorgio; Seta, Masumichi; Sharma, Ekta; Qiu, Keping; Shimajiri, Yoshito; Shinnaga, Hiroko; Archana Soam; Tahani, Mehrnoosh; Tamura, Motohide; Wu, Jintai; Tang, Ya-Wen; Tang, Xindi; Tomisaka, Kohji; Tram, Le Ngoc; Tsukamoto, Yusuke; Ward-Thompson, Derek; Xie, Jinjin; Yang, Meng-Zhe; Yen, Hsi-Wei; Yoo, Hyunju; Yuan, Jinghua; Greaves, Jane; Berry, David; Yun, Hyeong-Sik; Zenko, Tetsuya; Zhang, Guoyin; Zhang, Yapeng; Zhang, Chuan-Peng; Zhou, Jianjun; Zhu, Lei; Looze, Ilse de; Andre, Philippe; Griffin, Matt; Dowell, C. Darren; Byun, Do-Young; Eden, David; Eyres, Stewart; Falle, Sam; Gouellec, Valentin J. M. Le; Poidevin, Frederick; Loo, Sven van; Chen, Huei-Ru Vivien; Chen, W.P; Gu, Qilao; Chen, Mike; Chen, Zhiwei; Ching, Tao-Chung; Cho, Jungyeon; Choi, Minho; Choi, Yunhee; Coude, Simon; Chrysostomou, Antonio; Chung, Eun Jung; Dai, Sophia; Han, Ilseung; Debattista, Victor; Francesco, James Di; Diep, Pham Ngoc; Doi, Yasuo; Duan, Hao-Yuan; Duan, Yan; Eswaraiah, Chakali; Fanciullo, Lapo; Fiege, Jason; Fissel, Laura M; Hasegawa, Tetsuo; Franzmann, Erica; Friber, Per; Friesen, Rachel; Fuller, Gary; Gledhill, Tim; Graves, Sarah; Houde, Martin; Hull, Charles L. H; Inoue, Tsuyoshi; Inutsuka, Shu-ichiro; Iwasaki, Kazunari; Nakanishi, Hiroyuki; Jeong, Il-Gyo; Johnstone, Doug; Karoly, Janik; Könyves, Vera; Kang, Ji-hyun; Kang, Miju; Kataoka, Akimasa; Kawabata, Koji; Kemper, Francisca; Kim, Jongsoo; Ngoc, Nguyen Bich; Kim, Shinyoung; Kim, Gwanjeong; Kim, Kyoung Hee; Kim, Mi-Ryang; Kim, Kee-Tae; Kim, Hyosung; Kirchschlager, Florian; Kirk, Jason; Kobayashi, Masato I. N; Kusune, Takayoshi; Ohashi, Nagayoshi (American Astronomical Society, 2024-12-10)
    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 ...
  • Design requirements of a spectropolarimeter for solar extreme-ultraviolet observations and characterization of a K-mirror based on Brewster's angle 
    Khan, Raveena; Radhika, Dharmadhikari; Mathur, Harsh; Nagaraju, K; Jain, Sinchana R; Phanindra, D. V. S; Sagayanathan, K (Optica Publishing Group, 2024-12-01)
    Measuring the linear polarization signal in extreme-ultraviolet (EUV) spectral lines, produced by the Hanle effect, offers a promising technique for studying magnetic fields in the solar corona. The required signal-to-noise ...
  • Applying the velocity gradient technique in NGC 1333: comparison with dust polarization observations 
    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 ...
  • Probing the morphology of polarized emission induced by fluctuation dynamo using minkowski functionals 
    Dutta, Riju; Sur, Sharanya; Basu, Aritra (American Astronomical Society, 2024-12-01)
    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 ...
  • Herschel investigation of cores and filamentary structures in L1251 located in the Cepheus flare 
    Dewan, Divyansh; Archana Soam; Zhang, Guo-Yin; Lasrado, Akhil; Singh, Saikhom Pravash; Lee, Chang Won (Indian Academy of Sciences, 2024-12)
    Abstract. Context: Molecular clouds are the prime locations of star formation. These clouds contain filamentary structures and cores which are crucial in the formation of young stars. Aims: In this work, we aim to quantify ...
  • Laghu Mānasa Vyākhyā – a 17th century astronomy manuscript in Kannaḍa 
    Shylaja, B. S; Punith, R. (Indian Academy of Sciences, 2024-12)
    We have studied two manuscripts as commentaries called Laghu Mānasa Vyākhyā and titled grahaṇānayanam. Our attempts to decipher the contents have revealed that they are commentaries in Sanskrit (the script is Kannada) on ...
  • ATOMS: ALMA three-millimeter observations of massive star-forming regions – XVIII. On the origin and evolution of dense gas fragments in molecular shells of compact H II regions 
    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 ...
  • uGMRT survey of EXoplanets around m-dwarfs (GS-EXAM): radio observations of GJ 1151 
    Narang, Mayank; Puravankara, Manoj; Vedantham, H. K; Ishwara-Chandra, C. H; De, Ayanabha; Tyagi, Himanshu; Banerjee, Bihan; Nayak, Prasanta K; Surya, Arun; Shridharan, B; Pathak, Vinod C; Tripathi, Mihir (American Astronomical Society, 2024-12)
    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 ...
  • Deciphering the evolution of thermodynamic properties and their connection to the global kinematics of high-speed coronal mass ejections using FRIS model 
    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 ...
  • High-resolution spectroscopy of the variable hot post-AGB star LS 4331 (IRAS 17381‑1616) 
    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 ...
  • Probing massive gravitons in f(R) with lensed gravitational waves 
    Sharma, Vipin Kumar; Harikumar, Sreekanth; Grespan, Margherita; Biesiada, Marek; Verma, Murli Manohar (Elsevier B.V Funded by SCOAP, 2024-12)
    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 ...
  • Stellar substructures in the galactic disc and halo: properties, origins, and evolution 
    Deepak (Springer Nature, 2024-12)
    Spatial, kinematic, and orbital properties, along with ages and chemical compositions of the thin disc, thick disc, and various stellar substructures in the halo, are studied based on data from the LAMOST and Gaia surveys. ...
  • AT 2021hdr: A candidate tidal disruption of a gas cloud by a binary super massive black hole system 
    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 ...
  • Demography of stellar radio population within 500 pc: a VLASS-gaia DR3 study 
    Ayanabha, D; Narang, Mayank; Puravankara, Manoj; Shridharan, B; Tyagi, Himanshu; Banerjee, Bihan; Nayak, Prasanta K; Surya, Arun (American Astronomical Society, 2024-12)
    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 ...
  • Star formation in neutral hydrogen gas reservoirs at cosmic noon 
    Dharmender; Joshi, Ravi; Fumagalli, Michele; Noterdaeme, Pasquier; Chand, Hum; Ho, Luis C (EDP Sciences, 2024-12)
    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 ...

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