Two new preprints, one with forecasts for a future gamma-ray pulsar timing array 😎 arxiv.org/abs/2512.14981 arxiv.org/abs/2512.15065
Future Space-based Gamma-ray Pulsar Timing Arrays
Radio pulsar timing array (PTA) experiments using millisecond pulsars (MSPs) are beginning to detect nHz gravitational waves (GWs). MSPs are bright GeV gamma-ray emitters, and all-sky monitoring of ab...
arxiv.org
December 18, 2025 at 2:59 AM
Two new preprints, one with forecasts for a future gamma-ray pulsar timing array 😎 arxiv.org/abs/2512.14981 arxiv.org/abs/2512.15065
Reposted
Nancy Grace Roman telescope is out of the thermal vacuum chamber and getting ready to launch in 2026
November 14, 2025 at 10:33 PM
Nancy Grace Roman telescope is out of the thermal vacuum chamber and getting ready to launch in 2026
Reposted
New Publication at the Open Journal of Astrophysics: "Fast X-ray Transient Detection with AXIS: application to Magnetar Giant Flares" by Michela Negro (Louisiana State University, USA) and 8 others based in the USA and Canada
doi.org/10.33232/001...
doi.org/10.33232/001...
Fast X-ray Transient Detection with AXIS: Application to Magnetar Giant Flares | Published in The Open Journal of Astrophysics
By Michela Negro, Zorawar Wadiasingh & 7 more. A feasibility study of detecting Magnetar Giant Flares with the Advanced X-ray Imaging Satellite (AXIS)
doi.org
October 28, 2025 at 10:03 AM
New Publication at the Open Journal of Astrophysics: "Fast X-ray Transient Detection with AXIS: application to Magnetar Giant Flares" by Michela Negro (Louisiana State University, USA) and 8 others based in the USA and Canada
doi.org/10.33232/001...
doi.org/10.33232/001...
Reposted
Vacuum birefringence in the polarized X-ray emission of a radio magnetar. Rachael E. Stewart et. al. https://arxiv.org/abs/2509.19446
September 25, 2025 at 3:15 AM
Vacuum birefringence in the polarized X-ray emission of a radio magnetar. Rachael E. Stewart et. al. https://arxiv.org/abs/2509.19446
Reposted
I wrote an op-ed on the world-class STEM research ecosystem in the United States, and how this ecosystem is now under attack on multiple fronts by the current administration: newsletter.ofthebrave.org/p/im-an-awar...
I’m an award-winning mathematician. Trump just cut my funding.
The “Mozart of Math” tried to stay out of politics. Then it came for his research.
newsletter.ofthebrave.org
August 18, 2025 at 3:45 PM
I wrote an op-ed on the world-class STEM research ecosystem in the United States, and how this ecosystem is now under attack on multiple fronts by the current administration: newsletter.ofthebrave.org/p/im-an-awar...
Reposted
The Trump administration is launching a new wave of attacks on universities, and UCLA is the latest target.
My reporting on how the university has been hit and how some of its scientists are responding:
www.science.org/content/arti...
My reporting on how the university has been hit and how some of its scientists are responding:
www.science.org/content/arti...
NSF and NIH suspend grants to UCLA
Move follows Trump administration finding that school didn’t effectively combat antisemitism
www.science.org
August 1, 2025 at 6:11 PM
The Trump administration is launching a new wave of attacks on universities, and UCLA is the latest target.
My reporting on how the university has been hit and how some of its scientists are responding:
www.science.org/content/arti...
My reporting on how the university has been hit and how some of its scientists are responding:
www.science.org/content/arti...
🤦♂️
For the math folks on here: NSF has suspended Terry Tao's grant. www.nsf.gov/awardsearch/...
NSF Award Search: Award # 2347850
Structure theory for measure-preserving systems, additive combinatorics, and correlations of multiplicative functions
www.nsf.gov
August 1, 2025 at 2:59 PM
🤦♂️
Reposted
Reposted
youtu.be/BLjJgZP4SkU
🔭
AAS Journal Author Series: Kaustubh Rajwade on 2025ApJ...985L...3R
Kaustubh Rajwade (University of Oxford) chats about his article on a radio burst from a neutron star in the Carina Nebula.
🔭
AAS Journal Author Series: Kaustubh Rajwade on 2025ApJ...985L...3R
Kaustubh Rajwade (University of Oxford) chats about his article on a radio burst from a neutron star in the Carina Nebula.
AAS Journal Author Series: Kaustubh Rajwade on 2025ApJ...985L...3R
YouTube video by AAS
youtu.be
July 21, 2025 at 8:59 PM
youtu.be/BLjJgZP4SkU
🔭
AAS Journal Author Series: Kaustubh Rajwade on 2025ApJ...985L...3R
Kaustubh Rajwade (University of Oxford) chats about his article on a radio burst from a neutron star in the Carina Nebula.
🔭
AAS Journal Author Series: Kaustubh Rajwade on 2025ApJ...985L...3R
Kaustubh Rajwade (University of Oxford) chats about his article on a radio burst from a neutron star in the Carina Nebula.
Reposted
Nobel Prize Laureate Kip Thorne speaking yesterday at the Albert Einstein Institute in Postdam, Germany:
"Donald Trump is destroying America's capacity for [leading science]. We are counting on Europe to take over here and elsewhere." ⚛️ 🧪
"Donald Trump is destroying America's capacity for [leading science]. We are counting on Europe to take over here and elsewhere." ⚛️ 🧪
June 4, 2025 at 9:03 PM
Nobel Prize Laureate Kip Thorne speaking yesterday at the Albert Einstein Institute in Postdam, Germany:
"Donald Trump is destroying America's capacity for [leading science]. We are counting on Europe to take over here and elsewhere." ⚛️ 🧪
"Donald Trump is destroying America's capacity for [leading science]. We are counting on Europe to take over here and elsewhere." ⚛️ 🧪
Reposted
Last week, NASA and NSF released their FY26 budget requests. We list the detailed impacts on the astronomical sciences in this blog post, and share how you can take action today.
aas.org/posts/news/2...
@policy.aas.org
aas.org/posts/news/2...
@policy.aas.org
June 6, 2025 at 12:49 PM
Last week, NASA and NSF released their FY26 budget requests. We list the detailed impacts on the astronomical sciences in this blog post, and share how you can take action today.
aas.org/posts/news/2...
@policy.aas.org
aas.org/posts/news/2...
@policy.aas.org
Reposted
Nature research paper: Detection of X-ray emission from a bright long-period radio transient
https://go.nature.com/43xlKZS
https://go.nature.com/43xlKZS
Detection of X-ray emission from a bright long-period radio transient - Nature
A long-period radio transient with coincident radio and X-ray emission and observational properties unlike any known Galactic object has been observed by the Australian Square Kilometre Array Pathfinder.
go.nature.com
June 2, 2025 at 1:46 PM
Nature research paper: Detection of X-ray emission from a bright long-period radio transient
https://go.nature.com/43xlKZS
https://go.nature.com/43xlKZS
Reposted
What makes ASKAP J1832-0911 stand out from the rest of the Long-Period Transients is that, for the first time, coincident X-ray emission, along with radio emissions, have also been detected from such an object, thanks to the Chandra X-ray Observatory.
📸 Ziteng (Andy) Wang / @icrar.bsky.social
📸 Ziteng (Andy) Wang / @icrar.bsky.social
May 28, 2025 at 3:01 PM
What makes ASKAP J1832-0911 stand out from the rest of the Long-Period Transients is that, for the first time, coincident X-ray emission, along with radio emissions, have also been detected from such an object, thanks to the Chandra X-ray Observatory.
📸 Ziteng (Andy) Wang / @icrar.bsky.social
📸 Ziteng (Andy) Wang / @icrar.bsky.social
Reposted
The president's budget proposal cuts billions in funding from the DOE Office of Science, NIST, NASA, and the NSF — but there’s still time to change it. Tell your lawmakers why they should stand up for science using our letter-writing toolkit, targeted to your state: go.aps.org/3RP9EWF
May 2, 2025 at 9:32 PM
The president's budget proposal cuts billions in funding from the DOE Office of Science, NIST, NASA, and the NSF — but there’s still time to change it. Tell your lawmakers why they should stand up for science using our letter-writing toolkit, targeted to your state: go.aps.org/3RP9EWF
Reposted
The American Astronomical Society is gravely concerned by the deep cuts to NASA science funding reported to be in the draft President’s Budget Request for Fiscal Year 2026. Read more here: aas.org/press/aas-st... and take action now: aas.org/urge-nasa-su...
April 11, 2025 at 8:04 PM
The American Astronomical Society is gravely concerned by the deep cuts to NASA science funding reported to be in the draft President’s Budget Request for Fiscal Year 2026. Read more here: aas.org/press/aas-st... and take action now: aas.org/urge-nasa-su...
Reposted
Modern science wouldn’t exist without the online research repository known as arXiv. Three decades in, its creator still can’t let it go.
Inside arXiv—the Most Transformative Platform in All of Science
Modern science wouldn’t exist without the online research repository known as arXiv. Three decades in, its creator still can’t let it go.
wrd.cm
March 27, 2025 at 10:04 AM
Modern science wouldn’t exist without the online research repository known as arXiv. Three decades in, its creator still can’t let it go.
Reposted
It’s unclear whether Elon Musk’s enthusiasm for space exploration, and his influence with President Trump, could help shield NASA from sweeping cuts—or encourage Musk to remake it in his image.
Inside Trump and Musk’s Takeover of NASA
So far, NASA has been spared the sweeping cuts that DOGE has unleashed on other federal agencies. Is that about to change?
www.newyorker.com
March 21, 2025 at 5:01 PM
It’s unclear whether Elon Musk’s enthusiasm for space exploration, and his influence with President Trump, could help shield NASA from sweeping cuts—or encourage Musk to remake it in his image.
Reposted
Alex Cooper's paper resurrecting GRB models for X-ray binary jets - after a nearly 25 year hiatus.
Here, we use a modified jetsimpy model to include reverse shock emission for both energy and kinematics for X-ray binary MAXI J1535-571
#astronomy #highenergyastro
arxiv.org/abs/2503.10804
Here, we use a modified jetsimpy model to include reverse shock emission for both energy and kinematics for X-ray binary MAXI J1535-571
#astronomy #highenergyastro
arxiv.org/abs/2503.10804
Joint Radiative and Kinematic Modelling of X-ray Binary Ejecta: Energy Estimate and Reverse Shock Detection
Black hole X-ray binaries in outburst launch discrete, large-scale jet ejections which can propagate to parsec scales. The kinematics of these ejecta appear to be well described by relativistic blast ...
arxiv.org
March 17, 2025 at 7:05 PM
Alex Cooper's paper resurrecting GRB models for X-ray binary jets - after a nearly 25 year hiatus.
Here, we use a modified jetsimpy model to include reverse shock emission for both energy and kinematics for X-ray binary MAXI J1535-571
#astronomy #highenergyastro
arxiv.org/abs/2503.10804
Here, we use a modified jetsimpy model to include reverse shock emission for both energy and kinematics for X-ray binary MAXI J1535-571
#astronomy #highenergyastro
arxiv.org/abs/2503.10804
new preprint! 🥳
Irradiated Pulsar Planets and Companions as 511 keV Positron Annihilation Line Sources
https://arxiv.org/pdf/2503.10511
Zachary Metzler, Zorawar Wadiasingh.
https://arxiv.org/pdf/2503.10511
Zachary Metzler, Zorawar Wadiasingh.
https://arxiv.org/abs/2503.10511
arXiv abstract link
arxiv.org
March 14, 2025 at 10:41 PM
new preprint! 🥳
Reposted
Mission accomplished for #Integral 🕹️🛰️✅
After 2886 orbits & 22 years in space, our gamma-ray telescope ends its observations 👉 www.esa.int/Science_Expl...
Integral uncovered the nature of gamma-ray bursts & the origin of gravitational wave events, among others 💥✨ 1/3
🔭🧪 #highenergyastro
After 2886 orbits & 22 years in space, our gamma-ray telescope ends its observations 👉 www.esa.int/Science_Expl...
Integral uncovered the nature of gamma-ray bursts & the origin of gravitational wave events, among others 💥✨ 1/3
🔭🧪 #highenergyastro
Mission accomplished for Integral, ESA’s gamma-ray telescope
www.esa.int
February 28, 2025 at 9:07 AM
Mission accomplished for #Integral 🕹️🛰️✅
After 2886 orbits & 22 years in space, our gamma-ray telescope ends its observations 👉 www.esa.int/Science_Expl...
Integral uncovered the nature of gamma-ray bursts & the origin of gravitational wave events, among others 💥✨ 1/3
🔭🧪 #highenergyastro
After 2886 orbits & 22 years in space, our gamma-ray telescope ends its observations 👉 www.esa.int/Science_Expl...
Integral uncovered the nature of gamma-ray bursts & the origin of gravitational wave events, among others 💥✨ 1/3
🔭🧪 #highenergyastro
Reposted
Jocelyn Bell and Anthony Hewish announced their discovery of a “rapidly pulsating radio source” — what we now refer to as a pulsar — with a paper in @nature.com #OTD in 1968. 🧪 🔭 ⚛️
www.nature.com/articles/217...
www.nature.com/articles/217...
February 24, 2025 at 8:28 PM
Jocelyn Bell and Anthony Hewish announced their discovery of a “rapidly pulsating radio source” — what we now refer to as a pulsar — with a paper in @nature.com #OTD in 1968. 🧪 🔭 ⚛️
www.nature.com/articles/217...
www.nature.com/articles/217...
Reposted
Do whales optimize their vocalizations for efficiency, just like human language? 🐋🎶 My latest study in
Science Advances (@science.org) suggests they do—following linguistic laws seen in human speech. 🧵 www.science.org/doi/10.1126/...
Science Advances (@science.org) suggests they do—following linguistic laws seen in human speech. 🧵 www.science.org/doi/10.1126/...
Language-like efficiency in whale communication
Whale vocalizations follow efficiency rules seen in human language, revealing striking similarities in communication systems.
www.science.org
February 5, 2025 at 7:13 PM
Do whales optimize their vocalizations for efficiency, just like human language? 🐋🎶 My latest study in
Science Advances (@science.org) suggests they do—following linguistic laws seen in human speech. 🧵 www.science.org/doi/10.1126/...
Science Advances (@science.org) suggests they do—following linguistic laws seen in human speech. 🧵 www.science.org/doi/10.1126/...
Reposted
A new result led by my former student Ziteng (Andy) Wang and colleagues:
"20 mysterious radio bursts" found using our new Commensal Realtime ASKAP Fast Transient COherent (CRACO) system.
www.abc.net.au/news/2025-01...
(With commentary by @astrolaura.com)
#RadioAstronomy
"20 mysterious radio bursts" found using our new Commensal Realtime ASKAP Fast Transient COherent (CRACO) system.
www.abc.net.au/news/2025-01...
(With commentary by @astrolaura.com)
#RadioAstronomy
January 28, 2025 at 4:13 AM
A new result led by my former student Ziteng (Andy) Wang and colleagues:
"20 mysterious radio bursts" found using our new Commensal Realtime ASKAP Fast Transient COherent (CRACO) system.
www.abc.net.au/news/2025-01...
(With commentary by @astrolaura.com)
#RadioAstronomy
"20 mysterious radio bursts" found using our new Commensal Realtime ASKAP Fast Transient COherent (CRACO) system.
www.abc.net.au/news/2025-01...
(With commentary by @astrolaura.com)
#RadioAstronomy
Reposted
