Prathamesh Tamhane

Astronomy Postdoc at the University of Alabama in Huntsville.

[Prathamesh Tamhane @PDTamhane]

• 20 atomic hydrogen clouds in the surrounding environment, including ten without optical counterparts.

[Prathamesh Tamhane @PDTamhane]

How does a galaxy build a large cold gas reservoir in a weak X-ray cool core?

Our new paper on NGC 4936 is now on arXiv!
https://t.co/4jdk4fh5eP

[Prathamesh Tamhane @PDTamhane]

Combining ALMA, MeerKAT, MUSE, Hubble and Chandra observations, we find:
• Nearly 10^8 solar masses of molecular gas, but no detectable central atomic hydrogen.
• Ionised gas and dust filaments extending roughly 15 kiloparsecs.

[Prathamesh Tamhane @PDTamhane]

This suggests a unified, pressure-dependent filament formation mechanism operating from groups to clusters, with clear predictions for future RM and molecular gas observations.

[Prathamesh Tamhane @PDTamhane]

Excited to share our new PASA paper! https://t.co/hiuCg5rlFJ

With the Hubble Space Telescope, we resolve ionised filaments in the galaxy group NGC 5044 down to ~50 pc, the first such high-resolution view in a group environment.

[Prathamesh Tamhane @PDTamhane]

• Atmospheric pressure and dust survival appear key for shielding and molecular gas formation: lower M_A means better magnetic coupling of grains, prolonging dust survival and enabling molecular gas to persist — rare in groups, common in cluster cores

[Prathamesh Tamhane @PDTamhane]

spectroscopy, this work helps place new constraints on dark matter models and highlights the power of galaxy clusters as cosmic laboratories.

🔗 https://t.co/xp0ySMhL54

[Prathamesh Tamhane @PDTamhane]

Excited to share this new study led by my supervisor, Prof. Ming Sun at UAH, in which I was also involved, exploring how unidentified X-ray emission lines in galaxy cluster spectra could provide a promising pathway to detecting dark matter. Using high-resolution X-ray

[Prathamesh Tamhane @PDTamhane]

It was a great chance to dive into the motivation, methods, and implications of our work on AGN feedback and star formation in M87, and to talk about how it fits into the broader picture of galaxy evolution research.
Many thanks to Frank and the AAS Journals team for organizing!

[Prathamesh Tamhane @PDTamhane]

I recently had the opportunity to discuss my latest paper with Frank from the AAS Journal Series in a journal club–style interview, now available on YouTube.
Watch the full conversation here: https://t.co/Okxp0Q20MR

[Raju Parulekar @rajuparulekar]

Indians have been living a respectful life in USA, UK, Canada and other Countries for over a century. What has really changed with the current expats creating such a ruckus, nuisance, civic garbage, displaying absolute lack of civic sense, cultural bankruptcy, this Diwali❓

Their behaviour is in sync with the terrorising HINDUTVA HUBRIS, unlike the peaceful, humble, quiet, serene, Hindu way of life.

What a shame have they brought to India

[Prathamesh Tamhane @PDTamhane]

Our new paper, "Constraining star formation in M87 using deep HST UV data," has been accepted for publication in The Astrophysical Journal (ApJ).

Check out the full paper here:

https://t.co/w1Eu2KIzlr

[Dr P Thiaga Rajan (PTR) @ptrmadurai]

To the Bench of the Hon'ble Supreme Court of India hearing the ADR case:

1) Most candidates (especially smaller or non-tech-savvy parties and independents) will simply not have the capacity to collect, collate, tabulate, and re-sort (by counting table) the Form 17 Data - EVM Serial #, Total Votes Polled – from 1,500 to 2,000 booths per MP Constituency, ahead of the vote counting process.

2) Therefore, the entire counting process is IMMENSELY more robust and transparent if the Form 17 Data with these details is published as soon as possible after polling, and well ahead of the counting, so that every agent of every candidate in the counting centers knows exactly how many votes to expect be counted on each EVM, after the serial number of the machine has been matched with the booth. This will be especially helpful for candidates from smaller parties, and independent candidates

3) Publishing this data (by booth) was the norm of the ECI till 2019 or so...when they mysteriously stopped publishing this data, AND TOOK ALL OLD FORM 17 DATA off their website. Within the ambit of a constitutional democracy, what possible motivation or justification can there be for this action ?

4) How is the electoral process, and our democracy, even .0001% worse off if this data - WHICH THE ECI ALREADY HAS IN DIRECTLY PUBLISHABLE FORM, AS IT IS BEING SUBMITTED BY EACH RETURNING OFFICER AFTER THE POLL - is published and made available to all ?? On the contrary, it will be immensely better off.

5) What possible reason can the ECI have for not publishing ~543 sets of scanned pages of data - WHICH WAS ALREADY COLLATED AND SENT TO THEM FROM EVERY CONSTITUENCY - on their website now. AS THEY USED TO!!!

6) Anyone with basic interest in Democracy, and integrity, must insist on the data being published well before counting. Anyone arguing against publishing it, patently has MALINTENT. There can be NO OTHER JUSTIFICATION.

Please do your Constitutional Duty to preserve some vestiges of accountability, robustness, and transparency in the Election process.

🙏🙏🙏

[Prathamesh Tamhane @PDTamhane]

Experienced the 2024 total solar eclipse and it felt magical!

[Pankaj Pachauri @PankajPachauri]

The last press conference by an Indian PM was held exactly 10 years ago today.

62 unscripted questions answered with 100+ journalists present.
-
https://t.co/kxm4o2Wyc0

[Shiva Chidambaram | சிவசிதம்பரம் @chid_shiva]

Indian govt suspends 92 opposition MPs because they demanded a debate over the security breach in Parliament. Yet another loud and clear msg from BJP to crores of Indians that their representation does not matter, their voices can be choked easily. #SoCalledDemocracy.

[Prathamesh Tamhane @PDTamhane]

Telescope proposal season is very stressful! Especially if it is your first proposal, you start late and it is for a telescope and wavelengths you're not familiar with!

[John Gibbons 🇵🇸 @think_or_swim]

Not to be alarmist but…this is what’s called a six-sigma event, now unfolding in Antarctica.

Otherwise known as a once-in-7.5-million-year event.

Hang onto your hats.

HT @EliotJacobson

[Prathamesh Tamhane @PDTamhane]

Within 15 minutes' walk from my place in Waterloo, ON:

✅Family doctor
✅Grocery store
✅Pharmacy
✅Library
✅Park
❌Café
❌Shops
✅Post office
❌Cinema
✅Sport
✅Bus stop
✅Train station
❌Theatre
✅Forest
❌Swimmingpool**
❌River
❌Outdoor swimming***
❌Disco (clubs)