Gopal Hazra

GitHub - gopalhazra/Computational_Physics_Gopal_Hazra: Solved assignements including jupyter notebooks for learning computation physics Solved assignements including jupyter notebooks for learning computation physics - gopalhazra/Computational_Physics_Gopal_Hazra

Just put the assignments and solutions of the computational physics course that I taught at IIT Kanpur:
github.com/gopalhazra/C...

Please feel free to download and play around
Happy coding :D

10.08.2025 17:23 — 👍 2    🔁 0    💬 0    📌 0

APPLICATIONS DUE IN ONE WEEK!

25.07.2025 16:42 — 👍 7    🔁 4    💬 0    📌 0

Atmospheric Escape and Replenishment in Planetary Systems Workshop

Abstracts close this Friday for the Fall 2025 STScI Science Workshop on Atmospheric Escape and Replenishment. We'd love to see you in Baltimore in November!

Check it out and let me know if you've any questions. 🔭 #exoplanets

www.stsci.edu/contents/eve...

14.07.2025 16:38 — 👍 9    🔁 2    💬 0    📌 0

Figure 7. Time series of S-indices for five targets with a range of spectral types. The top three panels show data from 1965 to 2024 for HD 78366 (F dwarf), HD 81809 (G dwarf), and the K-dwarf HD 26965, including historic MWO data (timespan in yellow) and newly obtained OWLS measurements (timespan in blue). We plot a curve on the G and K stars with three Lomb-Scargle (sinusoidal) terms, with periods ranging from 8 to 15 years. The OWLS S-indices from 2020-2024 for two M dwarfs GJ 388 B and GJ 494 are shown in the bottom row.

Presenting: the Olin Wilson Legacy Survey (OWLS). 🧪🔭 #stellarastro

Since 2019, Leslie Hebb, Suzanne Hawley and I have been monitoring spectra of bright northern stars including those monitored by Olin Wilson from ~1965-2000, and planet-hosting stars

And we're not done.

arxiv.org/abs/2507.07330

11.07.2025 10:48 — 👍 66    🔁 9    💬 5    📌 0

Figure 1

Figure 2

Top panel: {

Cross-correlation signature of the ultra hot-Jupiter WASP-121b as a function of orbital phase and radial-velocity (RV) shift, collected from 8 ESPRESSO observing nights [0.38--0.78 µm,][]{PelletierEtal2025ajWASP121bCRIRESplus

High-resolution Ultraviolet-to-nearinfrared Characterization of Exoplanet Atmospheres. Patricio E. Cubillos et. al. https://arxiv.org/abs/2507.03060

08.07.2025 03:53 — 👍 1    🔁 2    💬 0    📌 0

At Exomol conference!

02.07.2025 10:35 — 👍 4    🔁 0    💬 0    📌 0

It was an excellent event! So much fun, woohoo!

30.06.2025 20:28 — 👍 3    🔁 0    💬 0    📌 0

🔭If you work in stats you've probably heard of nested sampling: MCMCs fancy cousin. Enough people have asked me how it works that I've written an article (including examples!) explaining:
1. What NS is
2. Why we need it over MCMC
3. How to know if it's working
hughmcdougall.github.io/blog/03_stat...

25.05.2025 06:47 — 👍 20    🔁 8    💬 1    📌 1

My review article on "Atmospheric Escape from Exoplanets" is finally published in Reviews of Modern Plasma Physics. The full-text copy of the article is available in the following link:

rdcu.be/ek5aY

09.05.2025 11:48 — 👍 2    🔁 0    💬 0    📌 0

Flare from February 22nd 2024, as seen through the 8 filters of Aditya-L1's instrument SUIT

Last year, #ISRO 's solar probe #Adiyta-L1 witnessed a X6.3 #flare and captured 1st images from the #chromosphere. Published today by scientists led by #IUCAA and including #MPSGoettingen in #TheAstrophysicalJournalLetters. More here: www.mps.mpg.de/8324638/news... ☀️🔭
image credit: SUIT/Aditya-L1

28.02.2025 08:43 — 👍 10    🔁 2    💬 0    📌 0

I am excited to share that my review paper is in arXiv today. This paper gives the basics and overall progress of the field-atmospheric escape from exoplanets, in recent years. It will appear soon in the Reviews of Modern Plasma Physics.

arxiv.org/abs/2502.18124

26.02.2025 05:07 — 👍 4    🔁 1    💬 0    📌 0

We are delighted to announce an exoplanet workshop at IIT Kanpur from 4-6th April 2025. Please share the word.

Deadline: 27th Feb 2025

For application: sites.google.com/view/exows25...

13.02.2025 18:15 — 👍 2    🔁 0    💬 0    📌 0

Magnetic interaction of stellar coronal mass ejections with close-in exoplanets: implication on planetary mass-loss and Ly α transits ABSTRACT. Coronal mass ejections (CMEs) erupting from the host star are expected to affect the atmospheric erosion processes of planets. For planets with a

Publication alert!

Our paper on the effect of Coronal Mass Ejections on planetary atmospheric loss and habitability is finally published in MNRAS @rasjournals.bsky.social

academic.oup.com/mnras/articl...

30.01.2025 16:55 — 👍 9    🔁 2    💬 0    📌 0

SURGE IIT Kanpur

Summer internship opportunities at IIT Kanpur for masters and UG students to work in a research group. Check the following link

Masters students: www.iitk.ac.in/cce/SARIP/
UG students: surge.iitk.ac.in/dates.php

30.01.2025 16:51 — 👍 2    🔁 0    💬 0    📌 0