First Results from the Catalina Real-Time Transient Survey We report on the results from the first six months of the Catalina Real-Time Transient Survey (CRTS). In order to search for optical transients (OTs) with timescales of minutes to years, the CRTS analyses data from the Catalina Sky Survey which repeatedly covers 26,000 of square

📄 First Results from the Catalina Real-Time Transient Survey

Quicklook:
Drake, A. J. et al. (2009) · The Astrophysical Journal
Reads: 139 · Citations: 1351
DOI: 10.1088/0004-637X/696/1/870

#Astronomy #Astrophysics #Galaxies #Supernovae #BlLacertaeObjectsGeneral

An Impostor Explosion Hoping to find the second kilonova to be detected in both gravitational waves and light, astronomers ended up with a supernova instead. The post An Impostor Explosion appeared...

#Features #Highlights #gravitational #waves #kilonovae #supernovae

Origin | Interest | Match

An Impostor Explosion Hoping to find the second kilonova to be detected in both gravitational waves and light, astronomers ended up with a supernova instead. The post An Impostor Explosion appeared...

#Features #Highlights #gravitational #waves #kilonovae #supernovae

Origin | Interest | Match

A fast starburst wind consumes most of the energy from supernovae - Nature Starburst galaxies are seen to host galaxy-scale winds, which are super-fast and could be powered entirely by the thermal pressure of gas heated by supernovae.

A fast #starburstwind consumes most of the #energy from #supernovae

#Starburst #galaxies are seen to host #galaxy-scalewinds, which are #super-fast and could be #powered entirely by the #thermalpressure of #gas #heated by #supernovae.

www.nature.com/articles/s41...

Rubin Alert Leads to First Follow-Up Observations and Detection of Four Supernovae NSF NOIRLab has completed end-to-end runs of its ecosystem for following up on alerts from NSF–DOE Vera C. Rubin Observatory. The runs demonstrated how multiple NOIRLab-developed software tools, plus a network of telescopes around the globe, will enable quick follow-up observations of the countless transient objects that Rubin will uncover during its ten-year survey.

Rubin Alert Leads to First Follow-Up Observations and Detection of Four Supernovae #Science #Space #Astronomy #Supernovae #Astrophysics #SpaceObservations

www.universetoday.com/articles/rubin-alert-lea...

#Supernovae #Solar #System #Asteroids #The #Sun #Stars

Origin | Interest | Match

#Hubble #Space #Telescope #Supernovae #Dust #Black #Holes #About #The #Newsletter #Galaxies

Origin | Interest | Match

Original post on thedebrief.org

Astronomers Finally Solve the Mystery of Superluminous Supernovae The mystery of superluminous supernovae has finally been solved, as researchers have conclusively linked these cosmic phenomena to ...

#Astronomy #Breaking #News #accretion #disk #magnetar […]

[Original post on thedebrief.org]

Il pannello di sinistra mostra un’immagine di 15′ × 15′ di SN 2024abvb costruita utilizzando immagini multibanda Bgr del telescopio Swope, mappate rispettivamente nei canali blu, verde e rosso dell’immagine. Il pannello di destra è un ritaglio di 2′ × 2′ in cui è indicata la posizione di SN 2024abvb. La freccia indica la galassia ospite PSO J011055.760-054416.73.

La rara supernova di tipo Icn SN 2024abvb è tra le più luminose conosciute

#supernovae @astronomia

Un team internazionale di astronomi ha effettuato osservazioni fotometriche e spettroscopiche di SN 2024abvb, una supernova recentemente scoperta appartenente al […]

[Original post on mastodon.uno]

#Supernovae #Asteroids #Vera #Rubin #Observatory #Moon #Impacts #Novae

Origin | Interest | Match

VizieR J/A+A/706/A348

New in the #VirtualObservatory: “type Ia Supernova ASNOS sample” by Phan K. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A3...
#Supernovae #InfraredPhotometry #VisibleAstronomy

VizieR J/A+A/707/A91

New in the #VirtualObservatory: “ZTF SN Ia DR2 follow-up” by Alburai A. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A91
#Supernovae #Photometry #VisibleAstronomy #Spectroscopy

VizieR J/A+A/707/A80

New in the #VirtualObservatory: “Photometry of 6 SN 2009ip-like supernovae” by Salmaso I. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A80
#Supernovae #Photometry #VisibleAstronomy

Questa illustrazione artistica mostra una stella supergigante rossa che esplode come supernova. Le supernovae di tipo II provengono da stelle massicce che, nelle fasi finali della loro vita, diventano supergiganti rosse. Nuove ricerche esplorano il funzionamento interno di queste stelle e il motivo per cui alcune delle loro curve di luce risultano così diverse tra loro.

Questo schema illustra alcuni dei risultati del primo articolo. La dimensione di una stella alla fine della sequenza principale—la cosiddetta terminal-age main sequence (TAMS)—determina se diventerà una supergigante rossa o una supergigante blu. Le stelle che sono già relativamente grandi alla TAMS possono subire una forte espansione dell’inviluppo ed evolvere in supergiganti rosse. Al contrario, le stelle più compatte rimangono supergiganti blu e alla fine tendono a contrarsi invece di espandersi ulteriormente.

Questa figura mostra la struttura prima del breakout di una supergigante rossa (RSG) con 20 masse solari. Si tratta di un’istantanea delle densità di energia del gas e della radiazione prima che l’onda d’urto raggiunga la superficie della stella, poco prima del breakout.«Un forte precursore radiativo si sviluppa davanti all’onda d’urto», spiegano gli autori. Le frecce ciano indicano la velocità del gas, mentre le frecce rosse indicano il flusso di radiazione. La linea tratteggiata rosa rappresenta la fotosfera estesa, che attenua e rallenta il breakout dell’onda d’urto. «L’atmosfera si espande con una velocità trascurabile rispetto a quella dell’onda d’urto», spiegano gli autori.

Cosa succede all'interno di una stella massiccia prima che esploda come una supernova?

#astrofisica @astronomia
#supernovae

I ricercatori hanno ricostruito gran parte dei complessi dettagli che stanno dietro alle supernovae di tipo II. Tuttavia gli astrofisici […]

[Original post on mastodon.uno]

SN 2024abfl e la sua galassia ospite NGC 2146. Mostrata un’immagine composita RGB assemblata dalle esposizioni in banda g, r e i del telescopio Xinglong da 35 cm, a t = 4,4 giorni dall’esplosione.

La supernova SN 2024abfl, scoperta di recente, è una supernova di tipo IIP a bassa luminosità, secondo quanto scoperto dagli astronomi

#supernovae @astronomia

Un team internazionale di astronomi ha condotto osservazioni fotometriche e spettroscopiche di una […]

[Original post on mastodon.uno]

Astronomers Devise a New Way to Measure Cosmic Expansion with Lensed Supernovae Researchers in Munich have used the Large Binocular Telescope in Arizona to capture five images of one and the same supernova in a single picture. The gravity of two foreground galaxies has deflected the light from a supernova far in the background along different paths to Earth.

Astronomers Devise a New Way to Measure Cosmic Expansion with Lensed Supernovae #Science #Space #Astronomy #CosmicExpansion #Supernovae #AstronomyNews

www.universetoday.com/articles/astronomers-dev...

#Supernovae #Solar #System #White #Dwarfs #The #Sun #Nebula #Galaxies #Jwst #Milky

Origin | Interest | Match

Ia’m Just Getting Started: A Type Ia Supernova’s First Day Astrobites reports on simulations that might help astronomers identify double-detonation supernovae early in their evolution. The post...

#Astrobites #Highlights #hydrodynamic #simulations #supernovae #transients

Origin | Interest | Match

Ia’m Just Getting Started: A Type Ia Supernova’s First Day Astrobites reports on simulations that might help astronomers identify double-detonation supernovae early in their evolution. The post...

#Astrobites #Highlights #hydrodynamic #simulations #supernovae #transients

Origin | Interest | Match

VizieR J/A+A/706/A271

New in the #VirtualObservatory: “SN 2022ngb light curves” by Zhao J.-W. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A2...
#VisibleAstronomy #Supernovae #Photometry #InfraredAstronomy

VizieR J/ApJS/276/3

New in the #VirtualObservatory: “PS1-MDS supernovae classifications” by Villar V.A. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/276/3
#Photometry #Supernovae #StellarSpectralTypes

Supernovae come in two types. Core-collapse supernovae result from massive stars exhausting fuel. Thermonuclear supernovae are triggered by white dwarfs accreting mass or merging. Both produce expanding SNRs that can leave neutron stars or black holes.

#Supernovae #StellarEvolution #NASA

#Supernovae #Exoplanets #White #Dwarfs #Neutron #Stars #Pulsars #Stars #Jwst

Origin | Interest | Match

VizieR J/A+A/706/A183

New in the #VirtualObservatory: “SN 2021efd, SN 2019tsf photometry and spectra” by Pyykkinen N. et al.
cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A1...
#Spectroscopy #VisibleAstronomy #Supernovae #Photometry

VizieR J/ApJ/957/100

New in the #VirtualObservatory: “Long-term sp. obs. of SN IIb/Ib 2022crv” by Gangopadhyay A. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/957/100
#Spectroscopy #Supernovae #VisibleAstronomy

What Is Direct Collapse to a Black Hole and How Does It Work? Direct collapse to a black hole is when a massive star collapses into a black hole without producing a bright supernova. It works because the imploding core cannot power a strong explosion, most of the energy leaves as neutrinos, and the outer layers largely fall back or are only gently ejected. Astronomers infer these events when a star brightens in infrared light from heated dust, then disappears with no supernova seen.

Some stars skip the supernova and plunge straight into black holes. Curious how a direct collapse happens and what it looks like in infrared? Dive in and tell us your biggest question! #AndromedaGalaxy #Astrophysics #BlackHoles #InfraredAstronomy #Supernovae

VizieR J/ApJ/956/108

New in the #VirtualObservatory: “TESS 4yrs obs. of Type Ia supernovae” by Fausnaugh M.M. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/956/108
#Supernovae #Photometry #VisibleAstronomy #AbsoluteMagnitude

Original post on thedebrief.org

Astronomers Were Baffled by the Disappearance of a Massive Star in a Nearby Galaxy—Now They Have Solved This Cosmic Cold Case NASA’s NEOWISE has allowed astronomers to get the best and most com...

#Astronomy #Breaking #News #black #hole #NEOWISE #stellar […]

[Original post on thedebrief.org]

Original post on mastodon.social

@sciencebusters #ScienceBusters Podcast SBP123:

Wohin die toten #Sterne kommen

Mit Martin #Puntigam und @astrodicticum

Über #Kernkollapse, #Supernovae, #Neutronensterne, weiße & schwarze #Zwerge, blaue #Nachzügler & quantenmechanischen #Entartungsdruck

In Ausgabe 123 geht es ums Ende der […]

James #Webb Space Telescope #JWST

Watching Dust Formation in Real Time in Two Very Nearby Core Collapse #Supernovae

TARG: #SN2024ggi
2026-02-01
PI: Andrews, Jennifer

MIRI (2550 2100 1800) 1500 1280 R 1130G 770 560 B

yuval-harpaz.github.io/astro/jwst_l...

NASA/ESA/CSA/STScI/j. Roger