R. Sagar - Publications, H-index & Citations

R. Sagar

department of science & technology (india)

40H指数

415论文数

5.2K被引数

收录论文 83

发表时间

Blue Straggler in the Making: An X-Ray Active Binary in Algol Configuration 正在形成的蓝离散星：一个处于大陵型配置的X射线活动双星

The Astrophysical Journal Letters

IF0

2026-04-30

OAAI

A. H. Sheikh; Biman J. Medhi; Annapurni Subramaniam; Sergio Messina; Susmita Das; Hitendra Sarkar; Anupam Bhardwaj; Atila Poro; Marina Kounkel; Ram Sagar

First discovery of a fast-rotating blue straggler in a compact binary with a sub-stellar companion

Monthly Notices of the Royal Astronomical Society

IF4.8

2026-02-01

OAAI

Sheikh, A. H.; Medhi, Biman J.; Messina, S.; Subramaniam, A.; Panwar, Neelam; Sagar, Ram

Dynamical Signatures of Trumpler 19: A Statistical and Photometric Perspective 特鲁姆勒19的动力标志：统计与光度学视角

astrophysical journal

IF0

2025-08-01

PREAI

A. H. Sheikh; Biman J. Medhi; Ram Sagar

Exploring the Central Region of NGC 1365 in the Ultraviolet Domain

ASTROPHYSICAL JOURNAL

IF5.4

2024-10-03

OAAI

Kurian, Kshama Sara; Stalin, C. S.; Wylezalek, Dominika; Lyubenova, Mariya; Adhikari, Tek Prasad; Devaraj, Ashish; Sagar, Ram; Kissler-Patig, Markus; Mondal, Santanu

Peering into the Heart of the Giant Molecular Cloud G148.24+00.41: A Deep Near-infrared View of the Newly Hatched Cluster FSR 655

ASTRONOMICAL JOURNAL

IF5.1

2024-08-30

OAAI

Rawat, Vineet; Samal, M. R.; Ojha, D. K.; Kumar, Brajesh; Sharma, Saurabh; Jose, J.; Sagar, Ram; Yadav, R. K.

UOCS: XIV. Uncovering extremely low-mass white dwarfs and blue lurkers in NGC 752

ASTRONOMY & ASTROPHYSICS

IF5.8

2024-08-14

OAAI

Jadhav, Vikrant V.; Subramaniam, Annapurni; Sagar, Ram

A comparative analysis of the active galactic nucleus and star formation characteristics of broad- and narrow-line Seyfert 1 galaxies

ASTRONOMY & ASTROPHYSICS

IF5.8

2024-07-30

OAAI

Kurian, K. S.; Stalin, C. S.; Rakshit, S.; Mountrichas, G.; Wylezalek, D.; Sagar, R.; Kissler-Patig, M.

UOCS. XIII. Study of the Far-ultraviolet Bright Stars in the Open Cluster NGC 2420 Using AstroSat

ASTROPHYSICAL JOURNAL

IF5.4

2024-01-31

OAAI

Yadav, R. K. S.; Dattatrey, Arvind K.; Rangwal, Geeta; Subramaniam, Annapurni; Bisht, D.; Sagar, Ram

Evidence for Low-power Radio Jet-ISM Interaction at 10 pc in the Dwarf AGN Host NGC 4395

ASTROPHYSICAL JOURNAL

IF5.4

2023-12-13

OAAI

Nandi, Payel; Stalin, C. S.; Saikia, D. J.; Riffel, Rogemar A.; Manna, Arijit; Pal, Sabyasachi; Dors, O. L.; Wylezalek, Dominika; Paliya, Vaidehi S.; Saikia, Payaswini; Dabhade, Pratik; Patig, Markus-Kissler; Sagar, Ram

X. Rich collection of post-mass-transfer systems in NGC 6791

ASTRONOMY & ASTROPHYSICS

IF5.8

2023-08-07

OAAI

Jadhav, Vikrant V.; Subramaniam, Annapurni; Sagar, Ram

Star Formation in the Dwarf Seyfert Galaxy NGC 4395: Evidence for Both AGN and SN Feedback?

ASTROPHYSICAL JOURNAL

IF5.4

2023-06-13

OAAI

Nandi, Payel; Stalin, C. S.; Saikia, D. J.; Muneer, S.; Mountrichas, George; Wylezalek, Dominika; Sagar, R.; Kissler-Patig, Markus

Changing look AGN Mrk 590: broad-line region and black hole mass from photometric reverberation mapping

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

IF4.8

2021-10-08

OAAI

Mandal, Amit Kumar; Schramm, Malte; Rakshit, Suvendu; Stalin, C. S.; Vijarnwannaluk, Bovornpratch; Rujopakarn, Wiphu; Poshyachinda, Saran; Kouprianov, Vladimir V.; Haislip, Joshua B.; Reichart, Daniel E.; Sagar, Ram; Mathew, Blesson

Evaluation of fractional clear sky over potential astronomical sites 对潜在天文地点的分数晴空的评估

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

IF4.8

2021-09-09

PREAI

Ningombam, Shantikumar S.; Song, H-J; Mugil, S. K.; Dumka, Umesh Chandra; Larson, E. J. L.; Kumar, Brijesh; Sagar, Ram

UOCS - III. UVIT catalogue of open clusters with machine learning-based membership using Gaia EDR3 astrometry

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

IF4.8

2021-01-27

OAAI

Jadhav, Vikrant V.; Pennock, Clara M.; Subramaniam, Annapurni; Sagar, Ram; Nayak, Prasanta Kumar

Estimation of the size and structure of the broad line region using Bayesian approach

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

IF4.8

2021-01-08

OAAI

Mandal, Amit Kumar; Rakshit, Suvendu; Stalin, C. S.; Petrov, R. G.; Mathew, Blesson; Sagar, Ram

Dust reverberation mapping of Z229-15

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

IF4.8

2020-12-12

OAAI

Mandal, Amit Kumar; Rakshit, Suvendu; Stalin, C. S.; Wylezalek, Dominika; Patig, Markus Kissler; Sagar, Ram; Mathew, Blesson; Muneer, S.; Pal, Indrani

Determination of the size of the dust torus in H0507+164 through optical and infrared monitoring

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

IF4.8

2018-01-29

OAAI

Mandal, Amit Kumar; Rakshit, Suvendu; Kurian, Kshama S.; Stalin, C. S.; Mathew, Blesson; Hoenig, Sebastian; Gandhi, Poshak; Sagar, Ram; Pandge, M. B.

First results from light scattering enhancement factor over central Indian Himalayas during GVAX campaign

SCIENCE OF THE TOTAL ENVIRONMENT

IF8

2017-12-01

OAAI

Dumka, U. C.; Kaskaoutis, D. G.; Sagar, Ram; Chen, Jianmin; Singh, Narendra; Tiwari, Suresh