Congratulations to Joe Pesce—newly appointed Assistant Director of the NSF NRAO's North American ALMA Science Center (NAASC)—on being named a 2026 Fellow of the American Association for the Advancement of Science (AAAS).
#Astronomy #RadioAstronomy
[Instagram link (about astrophysics)]
THIS is one good usage of names from Tolkien's work.
https://www.instagram.com/p/DW3p04pjK0Q/
#ORCs #RadioAstronomy #astrophysics #Tolkien
How do we measure radio emission? 📡🌌
Brightness → signal strength
Spectral → particle energy
Polarization → magnetic fields
Same signal.
Different spectrum.
#Astrophysics #PlasmaPhysics #GalaxyClusters #RadioAstronomy #ResonantCosmos
We have extended the deadline to this Friday, April 10th, for submitting proposals to the Iberian AtLAST Days
indico.iparcos.ucm.es/event/10/
#AtLAST #Astronomy #RadioAstronomy
📄 Big Data in Astronomy: Surveys, Catalogs, Databases and Archives
Quicklook:
Mickaelian, A. M. et al. (2020) · Communications of the Byurakan Astrophysical Observatory
Reads: 0 · Citations: 2
DOI: 10.52526/25792776-2020.6…
#Astronomy #Astrophysics #BlackHoles #RadioAstronomy
How do we measure radio emission? 📡🌌
Surface brightness → signal strength
Spectral index → particle energy
Polarization → magnetic fields
Invisible signal.
Mapped into physics.
#Astrophysics #PlasmaPhysics #GalaxyClusters #RadioAstronomy #ResonantCosmos
A variety of feed horns on top of the Green Bank Telescope
At one of the highest points on the Green Bank Telescope, above the main dish, sit feed horns atop a rotating turret containing the receivers.
📸 Credit: NSF/AUI/NSF GBO
1/3
#astronomy #radioastronomy #nrao #greenbanktelescope
Technical Readiness of MeerKAT for Solar Observations and Initial Science Results by D. Kansabanik et al. www.astro.gla.ac.uk/users/eduard...
#radioastronomy
"An icon of New Mexico, the Very Large Array (VLA) is due for an upgrade. Now years in the making, work on the next-generation antenna is getting ready to roll out."
via @krqe.com
www.krqe.com/news/new-mex...
#NewMexico #RadioAstronomy #ngVLA #VeryLargeArray
New Meteor Detection Software: RMS download on rmob.org A key feature of this software is its integrated satellite filter, specifically developed to minimize false positives by distinguishing genuine meteor echoes from satellite interference
#Radioastronomy
#meteorshower
a grid of 12 plots (4 columns, three rows). Each row represents a frequency that the pulsar is being observed at. The columns are: pulsar profile, frequency vs. pulse phase; time vs. pulse phase; bandpass
A large radio telescope pointed up towards the sky in this webcam image
..... and I'm finished my 8-hour observing run!
Got to finish with another one of my fav millisecond pulsars, PSR J2145-0750. I really like its profile and its one of the ones that is pesky and does not behave as it should!
Idiot pulsars.
Have a good weekend all, over & out!
📡🔭 #RadioAstronomy
a grid of 12 plots (4 columns, three rows). Each row represents a frequency that the pulsar is being observed at. The columns are: pulsar profile, frequency vs. pulse phase; time vs. pulse phase; bandpass
Onto the next zombie star - this is PSR J1744-3144
My nickanme for this one is "Narsil" (from LOTR) because its narrow, slightly jagged profile is good, and because this one is nearly 100% linearly polarized!
It's fun to use this one in polarization work.
#Pulsars #RadioAstronomy
Just had a big RFI (radio freq. interference) surge at the telescope....
ah yes, correlates in time with the humans waking up!
Annoying, but we can zap it out later in post-processing.
The trade off with observing during early hours of morning - signal is good, but sleep is bad!
#RadioAstronomy
#Astronomy community, this month's issue of the NRAO Newsletter is now available! Read here: https://science.nrao.edu/enews/19.3
Learn about upcoming workshops, #ALMA Cycle 13 Call for Proposals, doctoral dissertation + Jansky Fellows spotlights, events at the VLA, and more.
#RadioAstronomy #NRAO
Why do I call the pulsar PSR J1713+0747 the "problem child"?
Well, it kinda threw a tantrum in 2021 and did something that is extremely uncommon for millisecond pulsars to do!
Thread here on my first-ever, first-author paper about this event
📡🔭 #RadioAstronomy #Pulsars
a grid of 12 plots (4 columns, three rows). Each row represents a frequency that the pulsar is being observed at. The columns are: pulsar profile, frequency vs. pulse phase; time vs. pulse phase; bandpass
5 am start here as I take over Murriyang's controls for the next 8 hours.
Am just continuing the observation from the last observer, and guess who it is?!
OLD MATE ..... the problem child .... and it's shining brightly around 1.2 GHz today!
📡🔭
#Pulsars #RadioAstronomy
The active region source of a type III radio storm observed by Parker Solar Probe during encounter 2 by L. Harra et al* www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy
First Frequency-time-resolved Imaging Spectroscopy Observations of Solar Radio Spikes by D. L. Clarkson et al.* www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy
New in the #VirtualObservatory: “AB Aur NOEMA CS 3-2 datacube” by Riviere-Marichalar P. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A3...
#ChemicalAbundances #PreMainSequenceStars #RadioAstronomy
Promotional graphic for a Next Generation Very Large Array info session. The event is Monday, April 13 from 5:30-7:30 PM at the Holiday Inn Express & Suites in Alamogordo, NM.
Promotional graphic for a Next Generation Very Large Array info session. The event is Wednesday, April 15 from 5:30-7:30 PM at the Bradbury Science Museum in Los Alamos, NM.
Come learn more and ask questions about the future of astronomy in New Mexico!
The public is invited to join NRAO staff for Next Generation Very Large Array ( #ngVLA ) informational sessions in Los Alamos and Alamogordo.
No registration required. More info ⤵️
#Astronomy #RadioAstronomy #NewMexico
The beam on the Eiffel Tower is like a perfect dipole and extremely slowly rotating pulsar beam at optical wavelengths.
The ones I’ll be observing this Saturday morning are radio waves from pulsars and rotate hundreds of times per second! Like a rapid strobe! 🕶️
#RadioAstronomy
What lights galaxy clusters up in radio? 📡🌌
Black hole jets.
Shockwaves.
Turbulence.
Three sources.
One signal.
#Astrophysics #PlasmaPhysics #GalaxyClusters #RadioAstronomy #ResonantCosmos
In the past when I've observed, we've done some fun mini AMAs on here, so if you have any #RadioAstronomy or #pulsar questions, feel free to shoot them through from now or during the observing session and I'll do my best to answer them for you!
Can be anything you want to know!
📡🔭
A large radio dish, tilted at a 45-degree angle and pointing upwards and left towards the sky. It is daytime. There are three flags flying on poles in the foreground. Surrounding the antenna is grass and several trees.
I've got a big 8-hour (5am-1pm AEDT) observing shift coming up on Saturday morning, using the best telescope in the world - Murriyang!
Will be tracking several pesky pulsars - been a little while since my last observing block, so looking forward to seeing my pulsar friends!
📡🔭 #RadioAstronomy
dirty beam to clean image pipeline is so unhinged if you think about it. you’re inverting fourier transforms until the sky talks. 🔭
#radioastronomy
Searching for optical/EUV counterparts of type IIs in a complex metric burst
by Costas Alissandrakis et al.* www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy
What are the main sources of galaxy cluster radio emissions? 📡🌌
Radio Galaxies → black hole engines
Radio Relics → shockwave aftermath
Radio Halos → turbulent core
Galaxies collide → plasma stirs → radio glows.
#Astrophysics #PlasmaPhysics #GalaxyClusters #RadioAstronomy #ResonantCosmos
Radio Probing of Solar Wind Sources in Coronal Magnetic Fields by A. Koval et al.* www.astro.gla.ac.uk/users/eduard...
#astronomy #radioastronomy
Fig. 11 of Kam et al. 2026.
One key finding. A steep single-powerlaw Faraday rotation measure profile.
🧪🔭
#extragalactic
#radioastronomy
NEW: My former student, now postdoc at ASIAA, Minchul Kam led a massive study of the gas distribution within the Bondi radius of the AGN 3C84, using KVN radio polarimetry.
🧪🔭
#extragalactic
#radioastronomy
