Repozitorij Univerze v Novi Gorici

Iskanje po repozitoriju
A+ | A- | Pomoč | SLO | ENG

Iskalni niz: išči po
išči po
išči po
išči po
* po starem in bolonjskem študiju

Opcije:
  Ponastavi


1 - 3 / 3
Na začetekNa prejšnjo stran1Na naslednjo stranNa konec
1.
TDEs with LSST
Katja Bricman, 2018, objavljeni povzetek znanstvenega prispevka na konferenci

Opis: The Large Synoptic Survey Telescope (LSST) is an upcoming ground-based survey telescope in Chile, which will produce a multi-color survey of 18000 square degrees of the Southern Sky during its 10 years of observations. Due to its large coverage of the sky and its observing strategy it will be a perfect tool in search for transient astrophysical events, including rare Tidal Disruption Events (TDEs). TDEs occur when a star passes close by a supermassive black hole (SMBH) in a center of a galaxy and gets disrupted by its tidal forces. These events emit a bright flare of light, which can be observed to cosmological distances. In the seminar I will provide an overview of the LSST and TDEs, and present the preliminary results on the estimated absolute rates of TDE detection in 10 years of LSST operations, which were obtained by simulations of TDE light curves with an end-to-end LSST simulations framework.
Najdeno v: ključnih besedah
Povzetek najdenega: ...when a star passes close by a supermassive black hole (SMBH) in a center of... ...Tidal Disruption Events, Supermassive Black Holes, Sky Surveys...
Ključne besede: Tidal Disruption Events, Supermassive Black Holes, Sky Surveys
Objavljeno: 04.01.2021; Ogledov: 1230; Prenosov: 40
.pdf Polno besedilo (1009,99 KB)

2.
Studying TDEs in the era of LSST
Katja Bricman, A. Gomboc, 2019, objavljeni povzetek znanstvenega prispevka na konferenci

Najdeno v: ključnih besedah
Povzetek najdenega: ...tidal disruption of stars by their host supermassive black hole (SMBH) can provide us with... ...by the Action CA16104 Gravitational waves, black holes and fundamental physics (GWverse), supported by COST...
Ključne besede: The observing strategy with continuous scanning and large sky coverage of the upcoming ground-based Large Synoptic Survey Telescope (LSST) will make it a perfect tool in search of rare transients, such as Tidal Disruption Events (TDEs). Bright optical flares resulting from tidal disruption of stars by their host supermassive black hole (SMBH) can provide us with important information about the mass of the SMBH involved in the disruption and thus enable the study of quiescent SMBHs, which represent a large majority of SMBHs found in centres of galaxies. These types of transients are extremely rare, with only about few tens of candidates discovered so far. It is expected that the LSST will provide a large sample of new TDE light curves. Here we present simulations of TDE observations using an end-to-end LSST simulation framework. Based on the analysis of simulated light curves we estimate the number of TDEs with good quality light curves the LSST is expected to discover in 10 years of observations. In addition, we investigate whether TDEs observed by the LSST could be used to probe the SMBH mass distribution in the universe. The participation at this conference is supported by the Action CA16104 Gravitational waves, black holes and fundamental physics (GWverse), supported by COST (European Cooperation in Science and Technology).
Objavljeno: 04.01.2021; Ogledov: 1308; Prenosov: 0

3.
Observing TDEs in the era of LSST
Katja Bricman, 2020, objavljeni povzetek znanstvenega prispevka na konferenci

Opis: The upcoming Large Synoptic Survey Telescope (LSST) will observe ~18000 square degrees of the Southern sky and is expected to discover thousands of transients every night due to its large coverage of the sky and its observing strategy. Being an exceptional transient hunter, we expect the LSST to increase the current observed sample of Tidal Disruption Events (TDEs) by a factor of ~1000 in 10 years of survey duration. TDEs are one of the most promising phenomena in the study of dormant supermassive black holes (SMBHs) in the Universe, and if their observed optical light curves are sampled frequently enough, TDEs can serve as indicators of SMBH mass. We present our simulations of TDE observations with the LSST, the resulting SMBH mass distributions of observed TDEs, and the efficiency of different proposed observing strategies of the LSST in finding these rare transients.
Najdeno v: ključnih besedah
Povzetek najdenega: ...promising phenomena in the study of dormant supermassive black holes (SMBHs) in the Universe, and...
Ključne besede: Tidal Disruption Events, Supermassive black holes, sky surveys
Objavljeno: 04.01.2021; Ogledov: 1129; Prenosov: 0
.docx Polno besedilo (47,75 KB)

Iskanje izvedeno v 0 sek.
Na vrh