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1.
Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye
Andreja Gomboc, Aurora Clerici, Nada Ihanec, 2020, izvirni znanstveni članek

Ključne besede: astronomija, satelit gaia, gravitacijsko lečenje
Objavljeno v RUNG: 21.01.2020; Ogledov: 3182; Prenosov: 0
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2.
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Tanja Petrushevska, Andreja Gomboc, Katja Bricman, Aurora Clerici, Christopher Eckner, Nada Ihanec, Gabrijela Zaharijas, 2019, pregledni znanstveni članek

Opis: The grand challenges of contemporary fundamental physics—dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem—all involve gravity as a key component. And of all gravitational phenomena, black holes stand out in their elegant simplicity, while harbouring some of the most remarkable predictions of General Relativity: event horizons, singularities and ergoregions. The hitherto invisible landscape of the gravitational Universe is being unveiled before our eyes: the historical direct detection of gravitational waves by the LIGO-Virgo collaboration marks the dawn of a new era of scientific exploration. Gravitational-wave astronomy will allow us to test models of black hole formation, growth and evolution, as well as models of gravitational-wave generation and propagation. It will provide evidence for event horizons and ergoregions, test the theory of General Relativity itself, and may reveal the existence of new fundamental fields. The synthesis of these results has the potential to radically reshape our understanding of the cosmos and of the laws of Nature. The purpose of this work is to present a concise, yet comprehensive overview of the state of the art in the relevant fields of research, summarize important open problems, and lay out a roadmap for future progress. This write-up is an initiative taken within the framework of the European Action on 'Black holes, Gravitational waves and Fundamental Physics.
Ključne besede: black holes, gwverse
Objavljeno v RUNG: 24.06.2019; Ogledov: 3643; Prenosov: 0
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3.
Flares from the centers of galaxies with Gaia and OGLE surveys
Nada Ihanec, 2018, magistrsko delo

Opis: Modern wide-field-of-view and all-sky satellites (e.g. Gaia) and ground based surveys (e.g. OGLE) repeatedly cover a large part of the sky and are detecting new, transient astrophysical sources on daily basis. In this thesis I analyzed the data from Gaia and OGLE transient surveys, with special focus on transients located near the centres of galaxies to detect possible Tidal Disruption Events. These occur when a star gets too close to a Super-Massive Black Hole, which lurks in the centres of most galaxies, and gets disrupted due to the black hole's gravitational tidal forces. The goal of my research was to detect possible Tidal Disruption Events and eliminate false candidates, such as supernovae. The work involved daily inspection of new alerts, identified with Gaia and OGLE Transient Detection System. I searched for potential transients in galactic nuclei and in case there was such a transient detected, follow-up spectroscopic observations were initiated in order to help classify the object. During the course of my work I analyzed spectra obtained with the largest telescopes in the world (SALT, VLT) and performed the spectral template matching, recognition of spectral features related to known classes of transients, determination of redshift etc.
Ključne besede: Flares, transients, Gaia, OGLE, supernovae, tidal disruption events, nuclear transients
Objavljeno v RUNG: 14.05.2019; Ogledov: 4223; Prenosov: 133
.pdf Celotno besedilo (8,11 MB)

4.
Swift and SALT observations the nuclear transient Gaia17dbg = ATLAS17lbg = AT2017gul
Nada Ihanec, 2017, drugi sestavni deli

Ključne besede: AGN, supernove, tranzienti, Gaia, SALT, SWIFT
Objavljeno v RUNG: 31.01.2018; Ogledov: 3755; Prenosov: 0
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5.
SALT spectroscopic classification of nuclear transient Gaia17cqz/AT2017hrw as SN IIP
Nada Ihanec, 2017, drugi sestavni deli

Ključne besede: tranzienti, Gaia, klasifikacija, supernova
Objavljeno v RUNG: 31.01.2018; Ogledov: 3906; Prenosov: 0
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6.
OGLE Transient Discovery Report for 2017-12-23
Nada Ihanec, 2017, drugi sestavni deli

Ključne besede: astronomija, tranzient, OGLE
Objavljeno v RUNG: 31.01.2018; Ogledov: 3721; Prenosov: 0
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7.
Swift X-ray detection and VLT/FORS2 spectroscopy of the nuclear transient Gaia17cmd/AT2017har
Nada Ihanec, 2017, drugi sestavni deli

Ključne besede: tranzienti, Gaia, Swift, spektroskopija
Objavljeno v RUNG: 31.01.2018; Ogledov: 3714; Prenosov: 0
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8.
VLT/FORS2 spectroscopic classification of nuclear transient OGLE17hil as normal Supernova Type Ia
Nada Ihanec, 2017, drugi sestavni deli

Ključne besede: tranzient, OGLE, supernova
Objavljeno v RUNG: 31.01.2018; Ogledov: 3714; Prenosov: 0
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9.
OGLE-IV Transient Search report 25 September 2017 part 1-3
Nada Ihanec, 2017, drugi sestavni deli

Ključne besede: astronomija, OGLE, tranzienti
Objavljeno v RUNG: 09.11.2017; Ogledov: 3742; Prenosov: 193
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10.
SALT spectroscopic classification of nuclear transients Gaia17cen/AT2017gld as SN Ia-91T
Nada Ihanec, 2017, drugi sestavni deli

Ključne besede: astronomija, teleskop, supernova
Objavljeno v RUNG: 19.09.2017; Ogledov: 4088; Prenosov: 0
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