High-cadence observations of galactic nuclei by the future two-band UV-photometry mission QUVIK

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F25%3A00645233" target="_blank" >RIV/67985815:_____/25:00645233 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/25:00144549

Result on the web

<a href="https://hdl.handle.net/11104/0375071" target="_blank" >https://hdl.handle.net/11104/0375071</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/1.JATIS.11.4.042222" target="_blank" >10.1117/1.JATIS.11.4.042222</a>

Result language

angličtina

Original language name

High-cadence observations of galactic nuclei by the future two-band UV-photometry mission QUVIK

Original language description

The Quick Ultra-VIolet Kilonova surveyor (QUVIK), a two-band ultraviolet (UV) space telescope approved for funding as a Czech national science and technology mission, will focus on detecting early UV light of kilonovae (KNe) (Werner et al., 2024). In addition, it will study the UV emission of stars and systems (Krtička et al., 2024) as well as the intense and variable emission of active galactic nuclei (AGN) or galactic nuclei activated by tidal disruption events (TDEs) (Zajaček et al., 2024). In this contribution, we describe the role of this small (similar to 30-cm diameter) UV telescope for studying bright, nearby AGN. With its NUV and FUV bands, the telescope will perform high-cadence (similar to 0.1 to 1 day) two-band photometric monitoring of nearby AGN (z<1), which will allow us to probe accretion disk sizes/temperature profiles via photometric reverberation mapping. Thanks to its versatility, QUVIK will be able to perform a moderately fast repointing (<20 min) to target candidates for TDEs. Early detection of the UV emission following a TDE optical flare, in combination with the subsequent two-band UV monitoring performed simultaneously with other observatories, will enable us to infer the time delay (or its lack of) between the optical, UV, and X-ray emission. In combination with theoretical models, it will be possible to shed more light on the origin of the UV/optical emission of TDEs. Furthermore, the two-band monitoring of nuclear transients will be beneficial in distinguishing between TDEs (nearly constant blue color) and supernovae (progressive reddening) in the era of intensive wide-field surveys.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Astronomical Telescopes Instruments and Systems

ISSN

2329-4124

e-ISSN

2329-4221

Volume of the periodical

11

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

24

Pages from-to

042222

UT code for WoS article

001654125500019

EID of the result in the Scopus database

2-s2.0-105026856253