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Multiwavelength spectral modelling of the candidate neutrino blazar PKS 0735+178

Bharathan, Athira M; Stalin, C. S; Sahayanathan, S; Bhattacharyya, Subir; Mathew, Blesson (Oxford University Press on behalf of Royal Astronomical Society, 2024-04)

The BL Lac object PKS 0735+178 was in its historic γ-ray brightness state during 2021 December. This period also coincides with the detection of a neutrino event IC 211208A, which was localized close to the vicinity of PKS ...

A comparative study of dust grain polarization efficiencies in the interstellar and intracluster mediums towards anticentre galaxy

Bijas, N; Eswaraiah, Chakali; Sandhyarani, Panigrahy; Jose, Jessy; Maheswar, G (Oxford University Press on behalf of Royal Astronomical Society, 2024-04)

Dust polarization observations at optical wavelengths help understand the dust grain properties and trace the plane-of-the-sky component of the magnetic field. In this study, we make use of published optical polarization ...

CatNorth: An Improved Gaia DR3 Quasar Candidate Catalog with Pan-STARRS1 and CatWISE

Fu, Yuming; Wu, Xue-Bing; Li, Yifan; Pang, Yuxuan; Joshi, Ravi; Zhang, Shuo; Wang, Qiyue; Yang, Jing; Ng, FanLam; Liu, Xingjian; Qiu, Yu; Zhu, Rui; Wang, Huimei; Wolf, Christian; Zhang, Yanxia; Huo, Zhi-Ying; Ai, Y. L; Ma, Qinchun; Feng, Xiaotong; Bouwens, R. J (American Astronomical Society, 2024-04)

A complete and pure sample of quasars with accurate redshifts is crucial for quasar studies and cosmology. In this paper, we present CatNorth, an improved Gaia Data Release 3 (Gaia DR3) quasar candidate catalog with more ...

Multi-Wavelength Study of Hot Stellar Populations in Galactic Globular Clusters

Deepthi, S. Prabhu (Indian Institute of Astrophysics, 2023-07)

Galactic Globular clusters (GGCs) are old stellar systems (age ∼ 12 Gyr) consisting typically of about 104-106 gravitationally bound stars. This makes them excellent astrophysical laboratories to study stellar evolution, ...

Solving Cosmological Tensions with Neutrino Physics

Sharma, Ravi Kumar (Indian Institute of Astrophysics, 2023-11)

The ΛCDM model is the most successful model of cosmology to fit most of the cosmological observations, yet a few discrepancies exist. There is a 4σ to 5σ mismatch in determining the Universe’s current expansion rate from ...

The Great North American Eclipse 2024

Kapoor, R. C. (NIScPR-CSIR, 2024-05)

THE excitement about the total solar eclipse of 8 April 2024 in North America is unprecedented. Years before it was to pass, astronomers, educationists, students, the administrations and the local communities, and ...

Cloud–Cloud Collision and Cluster Formation in the W5-NW Complex

Issac, Namitha; Saha, Anindya; Choudhary, Saanika; Chaudhary, Aakash; Tej, Anandmayee; Liu, Hong-Li; Liu, Tie; Maheswar, G (American Astronomical Society, 2024-04-01)

We present a detailed structural and gas kinematic study of the star-forming complex W5-NW. A cloud–cloud collision scenario unravels with evidence of collision-induced star and cluster formation. Various signatures of ...

Multi-wavelength photometric study of five contact binaries in the field of globular cluster M4

Devarapalli, Shanti Priya; Jagirdar, Rukmini; Pothuneni, Ravi Raja; Amente, Dereje Wakgari; Thomas, Vineet; Safonova, M; Brosch, Noah (Elsevier B.V, 2024-04)

Binary stars are believed to be key determinants in understanding globular cluster evolution. In this paper, we present the Multi-band photometric analyses of five variables in the nearest galactic globular cluster M4, ...

SN 2020udy: A New Piece of the Homogeneous Bright Group in the Diverse Iax Subclass

Singh, Mridweeka; Sahu, D. K; Barna, Barnabas; Gangopadhyay, Anjasha; Dastidar, Raya; Teja, Rishabh Singh; Misra, Kuntal; Howell, D. Andrew; Wang, Xiaofeng; Mo, Jun; Yan, Shengyu; Hiramatsu, Daichi; Pellegrino, Craig; Anupama, G. C; Joshi, Arti; Bostroem, K. Azalee; Burke, Jamison; McCully, Curtis; Rama Subramanian, V; Li, Gaici; Xi, Gaobo; Li, Xin; Li, Zhitong; Srivastav, Shubham; Im, Hyobin; Dutta, Anirban (American Astronomical Society, 2024-04-10)

We present optical observations and analysis of the bright type Iax supernova SN 2020udy hosted by NGC 0812. The evolution of the light curve of SN 2020udy is similar to that of other bright type Iax SNe. Analytical modeling ...

Disentangling the association of PAH molecules with star formation: Insights from the James Webb Space Telescope and from the UltraViolet Imaging Telescope

Ujjwal, Krishnan; Kartha, Sreeja S; Akhil, Krishna R; Mathew, Blesson; Subramanian, S; Sudheesh, T. P; Thomas, Robin (EDP Sciences, 2024-04)

Context. Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous complex molecules in the interstellar medium and are used as an indirect indicator of star formation. On the other hand, the ultraviolet (UV) emission from ...

New Archives set up

The Hindu (The Hindu, 2009-11-30)

Reach for the sky - through a lens

The Times of Deccan (The Times of Deccan, 1982-09-09)

Bangalore's big leap into universe

The Times of Deccan (The Times of Deccan, 1982-09-09)

With Astrosat launch, ISRO scales new heights

Jesudasan, Dennis S (The Hindu, 2015-09-29)

A star party in the mountains

The Hindu (The Hindu, 2015-10-29)

Astrosat a beginning, India plans long haul

Kumar, Chethan; Tejnomayam, U (The Times of India, 2015-09-29)

Work by B'luru-based IIA critical in project 'Surya Tilak'

The Times of India (The Times of India, 2024-04-18)

India's Own Space Observatory

The New Indian Express (The New Indian Express, 2015-09-29)

Up in the sky: Isro's PSLV C 30 carrying multi wavelength Space Observatory Astrosat, lifts off from Satish Dhawan Space Centre in Sriharikota on Monday

Deccan Herald (Deccan Herald, 2015-09-29)

125 years of Kodaikanal Solar Observatory: How the Great Drought of 1876 led to its establishment

Marar, Anjali (The Indian Express, 2024-04-02)

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