Manami

postdoc in Astrophysics at @OhioStateUniversity, was research Analyst at @FlatironCCA, love to sing, 🐈 lover, currenty learning ukulele and german language.

[Manami @MANAMIROY2]

Our new paper is out on the arXiv https://t.co/NMOonWxroQ.  

Our simulations show that CR pressure reshapes cold gas clouds in the CGM, helping them grow, survive longer, and boost gas inflow to the galaxy.
#Astrophysics #CGM
1/4

[Manami @MANAMIROY2]

6. Interestingly, when such a displacement is observed, it can provide a "direct probe of the pitch-angle scattering rate of cosmic rays", offering new insight into how these particles propagate through astrophysical plasmas.

[Manami @MANAMIROY2]

1. https://t.co/bY4PjdZSHr
In some systems, the non-thermal emission appears "displaced from the actual cosmic ray acceleration site", making it difficult to connect the radiation we observe to where the cosmic rays were born. We develop a general framework to understand it.

[Manami @MANAMIROY2]

5. We show that CRs are injected with a "anisotropic pitch-angle distribution" (45 deg w B), they can travel a significant distance away from their acceleration region before scattering off magnetic fluctuations and becoming isotropic enough for their emission to be visible to us

[Dr. James Beattie @astro_magnetism]

Congrats to Princeton astro. grad., student, Matt Sampson (@Space_Boy_Matt), on his first author paper, now accepted for publication!

If you’re interested in MHD / CR fluid coupling (mostly via the acoustic response of the plasma) then check it out: https://t.co/EzVviW9DaJ

[Manami @MANAMIROY2]

In this paper, we explore how, during cosmic reionization, velocity anisotropies in ionization fronts can trigger the Weibel instability, which may act as a mechanism for generating seed magnetic fields in the early Universe.

[Manami @MANAMIROY2]

New Paper alert "https://t.co/SxM4Rgwkrz" : (This paper is special as it is led by a bright undergrad student who started this project as a summer program)

[Manami @MANAMIROY2]

However, there are still large uncertainties about the origin and strength of magnetic fields in the Universe. In particular, how seed magnetic fields were initially generated remains a major open and actively debated question in astrophysics.

[Manami @MANAMIROY2]

What about Magnetic Field?
This is one of the most frequently asked questions at almost every conference. As a cosmic ray enthusiast, I also find myself thinking about magnetic fields often, since cosmic rays (charged high-energy particles) propagate through magnetic fields.

[Raman Research Institute @RRI_Bangalore]

.@RRI_Bangalore congratulates Sahana. B and Abhishek. R, from the Electronics Engineering Group on their recent accomplishments. We are proud of their achievements and wish them continued success.

@PMOIndia @PrinSciAdvGoI @IndiaDST @DrJitendraSingh @karandi65 @TarunSouradeep

[Manami @MANAMIROY2]

As a result, CRs can boost the total cold gas mass in the CGM and enhance cold gas inflowinto the central galaxy — fueling more star formation. 🌠
Cosmic rays, once seen as by-products, may be key regulators of the galactic ecosystem.
4/4

[Manami @MANAMIROY2]

Our new paper is out on the arXiv https://t.co/NMOonWxroQ.  

Our simulations show that CR pressure reshapes cold gas clouds in the CGM, helping them grow, survive longer, and boost gas inflow to the galaxy.
#Astrophysics #CGM
1/4

[Manami @MANAMIROY2]

We find that cosmic ray pressure reshapes cold gas clouds stripped from satellite galaxies in a Milky Way-like halo. CRs “puff up” these clouds, increasing their surface area, hence cooling in their mixing layer, helping them grow and survive longer.
3/4

[Manami @MANAMIROY2]

I did little something for myself on my birthday last week. It was a long due task. Here is my freshly-brewed https://t.co/AlU7CyqiqP

[Manami @MANAMIROY2]

Proud of you 😍

[Ketan Rikame @rikame_ketan]

Motivated by eclipse flares in HMXBs, we extended our study to LMXBs and found a very interesting type of eclipse bursts - using them, we estimated the reprocessing efficiency of these systems.

Read more about our recent work:
https://t.co/y92wDSkJvu

[CARINAS @we_the_carinas]

We are excited to present our monthly colloquium series by Dr Chandreyee Maitra, IUCAA! Please do join us via Zoom on 18 Sept, 6:00 PM IST to know about the High-Energy Universe. Please share it with your colleagues and acquaintances. #womeninastro

[CARINAS @we_the_carinas]

We’re excited to announce the release of our 4th newsletter, marking 1st Newsletter in 2025! 📖 Check out the newsletter [https://t.co/l7TWcnrzEZ] and join us in celebrating the bright minds that are paving the way for new frontiers in science and academia!
#carinas #youngfaculty