Št. zadetkov: 51
Izvirni znanstveni članek
Oznake:
astronomy;techniques;supernovae;
In various types of supernovae (SNe), strong interaction between the SN ejecta and circumstellar material (CSM) has been reported. This raises questions about their progenitors and mass-loss processes shortly before the explosion. Recently, the bright long-lived Type II SN 2021irp was proposed to be ...
Leto:
2025
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
radiative transfer;supernovae;SNe 2022S;SNe 2023zgx;
Context. We present the optical follow-up of SNe 2022ywf and 2023zgx, two examples from the Iax subclass of thermonuclear supernova (SN) events. With peak absolute magnitudes of MV = −13.7 and −14.4 mag, respectively, both objects belong to the extremely low-luminosity (EL) population of the class.
...
Leto:
2026
Vir:
Univerza v Novi Gorici (UNG)
I. Salmaso,
E. Cappellaro,
L. Tartaglia,
J. P. Anderson,
S. Benetti,
Mateusz Bronikowski,
Y.-Z. Cai,
P. Charalampopoulos,
W. T. Chen,
E. Concepcion,
T. Petrushevska
Izvirni znanstveni članek
Oznake:
astronomy;neutrinos;supernovae;
Context. At late stages, massive stars experience strong mass-loss rates, losing their external layers and thus producing a dense H-rich circumstellar medium (CSM). After the explosion of a massive star, the collision and continued interaction of the supernova (SN) ejecta with the CSM power the SN l ...
Leto:
2025
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
stars;supernovae;
Context. Type II supernovae (SNe) are the most common terminal stellar explosions in the Universe. With SNe now being detected within days after first light, there is growing evidence that most Type II SNe (SNe II) show signs of interaction with a dense, confined circumstellar material (CSM) in the ...
Leto:
2026
Vir:
Univerza v Novi Gorici (UNG)
Raziskovalni podatki
Oznake:
astronomija;galaksije;supernove;rdeči premik;ekstinkcija;fotometrija;spektroskopija;optična astronomija;infrardeča astronomija;raziskovalni podatki;
Leto:
2026
Vir:
Univerza v Novi Gorici (UNG)
Izvirni znanstveni članek
Oznake:
Type Ia supernova;SN 2022an;91bg-like supernova;fast-declining supernova;helium absorption;near-infrared spectroscopy;optical spectroscopy;supernova ejecta;thermonuclear explosion;
We present optical and near-infrared (NIR) observations of the fast-declining Type Ia supernova (SN Ia) 2022an. The photometric and spectroscopic properties identify it as a standard 91bg-like event; however, our data reveal a relatively narrow absorption feature with a full width at half-maximum (F ...
Leto:
2026
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
ISS-CREAM;cosmic rays;TCD/BCD;CREAM;
The Cosmic Ray Energetics And Mass (CREAM) instrument on the International Space Station (ISS) is an experiment to study origin, propagation, acceleration and elemental composition of cosmic rays. The Top Counting Detector (TCD) and Bottom Counting Detector (BCD) are parts of the detector suite of t ...
Leto:
2019
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
ultra-high-energy photons;telescope array;hybrid spectrum;
We measure the spectrum of cosmic rays with energies greater than eV with the fluorescence detectors (FDs) and the surface detectors (SDs) of the Telescope Array Experiment using the data taken in our first 2.3-year observation from May 27, 2008 to September 7, 2010. A hybrid air shower reconstruct ...
Leto:
2015
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
cosmic rays;acceleration of particles;astroparticle physics;
We search for correlations between the positions of extragalactic objects and the arrival directions of ultra-high energy cosmic rays (UHECRs) with primary energy E ≥ 40 EeV as observed by the surface detector array of the Telescope Array (TA) experiment during the first 40 months of operation. We e ...
Leto:
2013
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
UHECR;energy spectrum;fluorescence;monocular;
We present a measurement of the energy spectrum of ultra-high-energy cosmic rays performed by the Telescope Array experiment using monocular observations from its two new FADC-based fluorescence detectors. After a short description of the experiment, we describe the data analysis and event reconstru ...
Leto:
2013
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)