RE: https://fediscience.org/@OJ_Astro/116447067337351283

Also, this was the paper led by a graduate student working with me published in @OJ_Astro last month for his Ph.D thesis. In this work we study how to combine data from the Rubin Observatory and the Roman Space telescope to extend redshift coverage for cosmological analysis.

#Physics #Astrodon

RE: https://fediscience.org/@OJ_Astro/116617293753093751

This paper (the second in the last last few weeks I have published in @OJ_Astro) combines my two research directions and history.

We study how to follow up a neutrino alarm from underground Super-Kamiokande neutrino experiment with the Rubin Observatory. There is a unique synergy between the projects in pointing resolution and ability to see deep into the galaxy.

When a core-collapse supernova in the galaxy explodes, it produced a neutrino burst. Using Super-K we can point to the location of the supernova. Then, using the wide field of view of the Rubin Observatory we can try to quickly locate the supernova and let the rest of the astronomical community know. Even if it is hidden behind a lot of dust in the galactic center and is extremely dim, Rubin's 8m-class mirror allows us to still observe the explosion.

This work is a step in a program to implement a fully working followup system at Rubin. My Super-K and Rubin colleagues and I are now working together on this.

#Physics #Astrodon

ρ-Ophiuchi Nebula Complex and friends.

Located at the meeting of Scorpio and Ophiuchus, this is arguably the most venomous part of the sky.

Let's look around.

Down the bottom we have Antares, a red supergiant, illuminating IC4606 - the Antares Nebula, and next to it the edge of the globular cluster M4.

Above M4 is a region illuminated by Al Niyat or Sigma Scorpii.

In between and above M4 and Antares is the tiny globular cluster NGC6144.

Directly above that is IC4603, and above that is the edge of what is recognised as IC6404, the ρ-Ophiuchi nebula itself.

Lastly, almost directly above Antares is IC4605 - the Blue Angel nebula.

Shot with a #Dwarf3 from my back yard in suburban #PerthWA , post processed in Stellar Studio, #Snapseed , and #GooglePhotos . Total exposure 6:19, 60s subs at gain 80, Ha/OIII filter.

#Astronomy #Astrophotography #Astrodon #BackyardAstronomy #SouthernSky #Photography

Rosetta Moving Cometary Boulder

A 100 foot-wide (30 meter), 28-million-pound (12.8-million-kilogram) boulder, was found to have moved 460 feet (140 meters) on comet 67P/Churyumov-Gerasimenko in the lead up to perihelion in August 2015, when the comet's activity was at its highest. In both images, an arrow point...

More: https://images.nasa.gov/details/PIA21565
Credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

#comet #rosetta #astrodon #astronomy #astrophotography #astrophysics

Dione: Craters and Rings

Saturn moon Dione hangs in front of Saturn rings in this view taken by NASA Cassini spacecraft during the inbound leg of its last close flyby of the icy moon.

More: https://images.nasa.gov/details/PIA17201
Credit: NASA/JPL-Caltech/Space Science Institute

#dione #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics

NGC 5128 (conocida también como Centauro A) es una galaxia que se encuentra a 16 millones de años-luz de la Tierra
Es visible principalmente desde el hemisferio Sur
Es particular la franja de polvo que la corta, posiblemente como resultado de una fusión entre dos pequeñas galaxias

182 lights + 20 darks de 60 segundos cada una.
Equipo: Evostar 72 ed + Neptune CII sobre EQ5 con picgoto

#AstronomiaDel3erMundo #Astronomy #Astrophotography #Astrodon #FotografiaAstronomica

Callisto Icy Surface

Callisto Icy Surface http://photojournal.jpl.nasa.gov/catalog/PIA00362

More: https://images.nasa.gov/details/PIA00362
Credit: NASA/JPL

#callisto #voyager #astrodon #astronomy #astrophotography #astrophysics

Atmospheric Structure

This is a composite of several images taken in several colors by the New Horizons Multispectral Visual Imaging Camera, or MVIC.

More: https://images.nasa.gov/details/PIA10098
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute

#jupiter #newhorizons #astrodon #astronomy #astrophotography #astrophysics

Down on Dione

The fractured terrain so distinctive to Dione curves away toward the south in this view, which looks down at the moon northern hemisphere

More: https://images.nasa.gov/details/PIA08839
Credit: NASA/JPL/Space Science Institute

#dione #cassini #cassinihuygens #astrodon #astronomy #astrophotography #astrophysics