Shishir Dholakia

My new paper is out today on a catalog of stellar companions with pulsation timing in TESS photometry! arxiv.org/abs/2410.19729 Paper thread below ⬇️

(6/6) Four stars in the Kepler sample are likely members of the ~ 10 Gyr thick disk. We think these stars are blue stragglers. They were likely rejuvenated by mass transfer from their companion -- which is now a white dwarf. We plan to test this hypothesis soon!

(5/6) If we take a look at the galactic kinematics of our sample and the earlier Kepler sample of pulsation timing binaries (Murphy+ 2018) we see suggestions that some stars are much older than the 2 billion yr lifetimes of δ Scuti stars. What's going on here?

My new paper is out today on a catalog of stellar companions with pulsation timing in TESS photometry! arxiv.org/abs/2410.19729 Paper thread below ⬇️

My first PhD paper is on arxiv today! Rotating planets are slightly wider at their equator compared to the poles. Saturn in our Solar System (below, minus the rings), is about 10% oblate! Can we detect this shape difference in transits from JWST? (1/N) arxiv.org/abs/2410.03449

@AstroPartyDan @unisqaus Thank you Dan!!

Huge congrats to @AstroShishir and other friends and colleagues at @unisqaus for this amazing discovery! Well done! 👏👏👏 science.nasa.gov/universe/exopl…

@ProfAbelMendez I love this plot! I believe our team and the other group have it listed closer to 1.6 S_E (±0.1 or 0.2) and the marker for Gliese 12 b looks like it's at 1.9 S_E?

This is the new Habitable Zone plot, including Gliese 12 b. Hint: It has about the same planet flux as Venus. 🙂

@fringetracker Thank you!!

@AstroShishir Congratulations!

Happy to announce the publication of Gliese 12 b, an Earth-sized, temperate planet only 40 lightyears away! This is an excellent target for future studies to examine the atmospheres of temperate, rocky planets.

I'm also very excited for this to have been featured by NASA! You can find a link to the press release here: science.nasa.gov/universe/exopl…

I co-led this publication with Larissa Palethorpe, a graduate student at the University of Edinburgh. You can find the paper here: arxiv.org/abs/2405.13118

Super proud of @AstroShashank winning a Highly Commended in the Malin Awards for this incredible Moon-Mars occultation! davidmalinawards.com/highly-commend…

TWO successful #JWSTCycle2 proposals from @unisqaus! Awesome work from our first year PhD student Alex Venner, it was his first ever space telescope proposal!

Photos of the total #LunarEclipse from Mt. Kent today and the guardian frog of the observatory bathrooms

@adiastra99 Congrats!!