I am Dr. Yogesh Chandra Joshi,
scientist at Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital, India

About Me

Since 1997, I have been actively engaged at ARIES, initially as a Research Scholar, progressing to a Research Associate, and currently serving as a Scientist. My primary research endeavors center around Galactic astronomy and the exploration of nearby galaxies within the Local Group. Within the realm of optical astronomy, my scientific interests predominantly revolve around time domain analysis, specifically encompassing extrasolar planets, variable stars, and star clusters. Additionally, I hold a keen interest in delving into the intricacies of Galactic archaeology. More recently, my research has extended to comprehending the dynamics of star formation activities within select nearby galaxies.

In 2004, I successfully earned my Ph.D. in gravitational lensing, focusing on the exploration of microlensing events directed towards the M31 galaxy using pixel analysis techniques. During my tenure as a postdoctoral fellow at TIFR, Mumbai, from 2004 to 2006, I directed my efforts toward comprehending Galactic archaeology by studying open star clusters within the Milky Way. Subsequently, my second postdoctoral research centered on extrasolar planets (exoplanets) within the SuperWASP group at Queen's University, Belfast, UK. Here, I co-authored multiple papers on the discovery of extrasolar planets orbiting nearby bright stars. Since 2009, I have held a permanent faculty position at ARIES, Nainital, currently serving as Scientist 'F' (Professor). I have authored 74 peer-reviewed papers, including 26 as the lead author, accumulating over 4000 citations and achieving a Google Scholar H-Index of 35. Additionally, I have presented 26 short papers at national and international conferences. Notable milestones in my scientific career include the groundbreaking "Detection of the first Microlensing event from India," lead in the discovery paper on "Exoplanet WASP-14b," and research on the "Determination of the Sun's displacement from the Galactic Plane."

In addition to my core research endeavors, I actively contribute to scientific communication within the astronomical community and engage in science popularization for the general public. I am deeply committed to fostering the interest of bright young students by acquainting them with the latest advancements in astronomy and astrophysics. This involves facilitating their learning of new techniques through short-term research projects and online engagements, aiming to encourage a deeper understanding and appreciation for scientific outcomes in the field.

Recent Publications

• 2024, Frontiers in Astronomy and Space Sciences, 11, 1348321;Y.C. Joshi, Deepak, S. Malhotra
  On the Metallicity Gradients in the Galactic Disk using Open Clusters




• 2024, MNRAS, 527, 4936; Hayes, J. J. C.; Priyadarshi, A.; Kerins, E.; and 19 coauthors (including Y. C. Joshi)
  TransitFit: combined multi-instrument exoplanet transit fitting for JWST, HST and ground-based transmission spectroscopy studies




• 2023, AJ, 166, 223; A-thano, Napaporn, Awiphan, Supachai, Jiang, Ing-Guey and 11 coauthors (including Y. C. Joshi)
  Revisiting the Transit Timing and Atmosphere Characterization of the Neptune-mass Planet HAT-P-26 b




• 2023, AJ, 166, 170; Y.C. Joshi, S. Malhotra
  Revisiting Galactic disk and spiral arms using open clusters