Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Ravinder K Banyal"'
Publikováno v:
The Astronomical Journal, Vol 167, Iss 6, p 270 (2024)
There is growing evidence from stellar kinematics and galactic chemical evolution suggesting that giant planets ( M _P ≥ 0.3 M _J ) are relatively young compared to the most commonly occurring population of small planets ( M _P < 0.3 M _J ). To fur
Externí odkaz:
https://doaj.org/article/ad426b1d9c2f40c6a0b286b97aac6724
Autor:
C. Swastik, Ravinder K. Banyal, Mayank Narang, Athira Unni, Bihan Banerjee, P. Manoj, T. Sivarani
Publikováno v:
The Astronomical Journal, Vol 166, Iss 3, p 91 (2023)
The GAIA space mission is impacting astronomy in many significant ways by providing a uniform, homogeneous, and precise data set for over 1 billion stars and other celestial objects in the Milky Way and beyond. Exoplanet science has greatly benefited
Externí odkaz:
https://doaj.org/article/a56f5728f5034b98abd4d114e6b43329
Autor:
Mayank Narang, Apurva V Oza, Kaustubh Hakim, P Manoj, Himanshu Tyagi, Bihan Banerjee, Arun Surya, Prasanta K Nayak, Ravinder K Banyal, Daniel P Thorngren
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 522:1662-1668
Exomoons have so far eluded ongoing searches. Several studies have exploited transit and transit timing variations and high-resolution spectroscopy to identify potential exomoon candidates. One method of detecting and confirming these exomoons is to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::038eb247da50b9ec44de030ead5ae4bb
https://doi.org/10.1093/mnras/stad1027
https://doi.org/10.1093/mnras/stad1027
Autor:
Mayank Narang, Apurva V. Oza, Kaustubh Hakim, P. Manoj, Ravinder K. Banyal, Daniel P. Thorngren
Publikováno v:
The Astronomical Journal, Vol 165, Iss 1, p 1 (2022)
We conducted the first dedicated search for signatures of exoplanet–exomoon interactions using the Giant Metrewave Radio Telescope (GMRT) as part of the radio-loud exoplanet-exomoon survey. Due to stellar tidal heating, irradiation, and subsequent
Externí odkaz:
https://doaj.org/article/305349d8868f4a3c890d9f321430c887
Autor:
Mayank Narang, Apurva V. Oza, Kaustubh Hakim, P. Manoj, Ravinder K. Banyal, Daniel P. Thorngren
Publikováno v:
Narang, Mayank; Oza, Apurva V.; Hakim, Kaustubh; Manoj, P.; Banyal, Ravinder K.; Thorngren, Daniel P. (2023). Radio-loud Exoplanet-exomoon Survey: GMRT Search for Electron Cyclotron Maser Emission. The astronomical journal, 165(1), p. 1. American Astronomical Society 10.3847/1538-3881/ac9eb8
We conducted the first dedicated search for signatures of exoplanet-exomoon interactions using the Giant Metrewave Radio Telescope (GMRT) as part of the radio-loud exoplanet-exomoon survey (RLEES). Due to stellar tidal heating, irradiation, and subse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3e40381078efb86a93368443a9a0418
https://boris.unibe.ch/181861/1/Narang_2023_AJ_165_1.pdf
https://boris.unibe.ch/181861/1/Narang_2023_AJ_165_1.pdf
Autor:
Ravinder K. Banyal, Armirul Hasan, Reni Kupke, Hari Mohan Varshney, Ajin Prakaesh, Thirupathi Sivarani, Andy J. Skemer, Nick MacDonald, Steph Sallum, Will Deich, Michael P. Fitzgerald, K. V. Govinda, Christopher T. Ratliff, Ramya Sethuram, Deno Stelter, Arun Surya, Eric Wang
A next-generation instrument named, Slicer Combined with Array of Lenslets for Exoplanet Spectroscopy (SCALES), is being planned for the W. M. Keck Observatory. SCALES will have an integral field spectrograph (IFS) and a diffraction-limited imaging c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8871232743a52c0ca2ced9ee98b76cd
Autor:
C. Swastik, Ravinder K. Banyal, Mayank Narang, P. Manoj, T. Sivarani, S. P. Rajaguru, Athira Unni, Bihan Banerjee
The imprints of stellar nucleosynthesis and chemical evolution of the galaxy can be seen in different stellar populations, with older generation stars showing higher $\alpha$-element abundances while the later generations becoming enriched with iron-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43169b43bfea6196de73c7482e944e4b
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy VIII.
Precision Doppler spectroscopy serves as an important tool for Radial Velocity (RV) measurements by observing Doppler shift in the stellar spectrum, which are used for various applications. Passively stabilized Fabry-Perot (FP) etalon based wavelengt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6aa366ecde586eb984b7a585bec519a2
https://doi.org/10.1117/12.2562007
https://doi.org/10.1117/12.2562007
A kinetic approach is developed, in a “tutorial style” to describe the evolution of an epidemic with spread taking place through contact. The “infection - rate” is calculated from the rate at which an infected person approaches an uninfected
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdebf9bbe3350508777051183f47546e
Accurate wavelength calibration is an important factor for any measurement with high resolution spectrographs. Stellar spectrum comprises of discrete absorption or emission lines whose position is precisely determined by calibrating the spectrograph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e039c0141edb35b5fc695d2bfe9dc438
http://arxiv.org/abs/2006.01453
http://arxiv.org/abs/2006.01453