German Virtual ObservatoryApr 18
New in the #VirtualObservatory: “HTRU-North pulsar survey. III” by Houben L.J.M. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/708/A199
#RadioSources #Pulsars
VizieR J/A+A/708/A199

VizieR catalogues

German Virtual ObservatoryApr 11
New in the #VirtualObservatory: “Flare param. from K2 & TESS data of PSR J1023+0038” by Zhang L.-Y. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/960/20
#VisibleAstronomy #Photometry #StellarFlares #Pulsars
VizieR J/ApJ/960/20

VizieR catalogues

MPIfR_BonnMar 25

Entdeckt unsere neue Pressemitteilung!

Check out our new press release!

➡️ https://www.mpifr-bonn.mpg.de/pressemeldungen/2026/radiosignale-aus-dem-randbereich-extremer-sterne

#Astrophysik #Radioastronomie #Pulsare #MPIfR #Wissenschaft #Universe #Cosmos #Entdeckung #Astronomy #RadioAstronomy #Pulsars #MPIfR #Science #Space #Cosmos #Astrophysics

Radiosignale aus dem Randbereich extremer Sterne

Ein Team von Astronomen hat festgestellt, dass einige der am schnellsten rotierenden Sterne, die sogenannten Millisekundenpulsare, Radiowellen aus verschiedenen, weit voneinander entfernten Regionen aussenden. Diese Erkenntnis stellt die bisherige Annahme in Frage, dass Radiowellen nur in der Nähe der Sternoberfläche erzeugt werden. Die Entdeckung zeigt, dass die Signale aus Bereichen stammen können, in denen Magnetfelder mit nahezu Lichtgeschwindigkeit rotieren.

NASAMar 23

NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion

https://fed.brid.gy/r/https://science.nasa.gov/missions/hubble/nasas-hubble-revisits-crab-nebula-to-track-25-years-of-expansion/

NASAMar 23
NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion https://science.nasa.gov/missions/hubble/nasas-hubble-revisits-crab-nebula-to-track-25-years-of-expansion/ #NASA #Astrophysics #AstrophysicsDivision #CrabNebula #EmissionNebulae #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Nebulae #NeutronStars #Pulsars #SupernovaRemnants
NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion

Hubble takes a fresh look at the Crab Nebula revealing, in unparalleled detailed, the aftermath of a supernova and how it evolved over 25 years.

NASA Science
Benjamin Carr, Ph.D. 👨🏻‍💻🧬Mar 13
A huge cloud of #darkmatter may be lurking near our #solarsystem
Researchers found what seems to be a cloud of dark matter about 60 million times mass of sun in our galactic neighbourhood
Dark matter interacts with regular matter via gravity, so if a dark matter sub-halo is near pair of #pulsars, it should stretch their orbits slightly. That is exactly what Chakrabarti and colleagues found a little more than 3000 light years from our solar system.
https://www.newscientist.com/article/2513924-a-huge-cloud-of-dark-matter-may-be-lurking-near-our-solar-system/
https://archive.is/kp6aK
A huge cloud of dark matter may be lurking near our solar system

For the first time, researchers have found what seems to be a cloud of dark matter about 60 million times the mass of the sun in our galactic neighbourhood

New Scientist
German Virtual ObservatoryMar 9
New in the #VirtualObservatory: “Isolated single-pulse pulsar candidates” by Houben L.J.M. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A10
#RadioSources #Pulsars #Astrometry #GalaxyKinematics
VizieR J/A+A/707/A10

VizieR catalogues

Ross of OttawaFeb 24

It's the anniversary of Jocelyn Bell Burnell's 1968 paper (later she'd be robbed of the #Nobel physics prize by her supervisor).

That iconic picture of her always reminds me of this modern meme, which incidentally would've been an appropriate reaction to the Nobel committee's behaviour:

#pulsars #memes #physics

Kanishka NaikFeb 23

SNRs are classified by their emission structure. Shell-type remnants show limb-brightened radio emission. Crab-like remnants are pulsar wind nebulae. Composite remnants combine both a shell and a central pulsar wind nebula.

#SNR #Pulsars #Astronomy

German Virtual ObservatoryFeb 16
New in the #VirtualObservatory: “Pulsar Vela X-1 Pulse-to-Pulse Approach” by Du Y.-J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A175
#GammaRayAstronomy #Accretion #Pulsars
VizieR J/A+A/706/A175

VizieR catalogues