Accretion properties of low-luminosity Active Galactic Nuclei

Organisation/Company

ALMA MATER STUDIORUM – UNIVERSITA’ DI BOLOGNA – – DIPARTIMENTO DI FISICA E ASTRONOMIA

Research Field

Astronomy » Astrophysics

Researcher Profile

Recognised Researcher (R2)
Leading Researcher (R4)
First Stage Researcher (R1)
Established Researcher (R3)

Country

Italy

Application Deadline

15 Jun 2023 – 23:59 (UTC)

Type of Contract

To be defined

Job Status

Not Applicable

Is the job funded through the EU Research Framework Programme?

H2020 / Marie Skłodowska-Curie Actions

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

Low Luminosity AGN (LLAGN) are powered by accretion onto black holes and exhibit relatively low accretion rates compared to QSOs. The accretion in LLAGN is thought to occur via a radiatively inefficient mode, where the gas is unable to efficiently radiate its thermal energy due to low densities and/or high magnetic fields. This results in 1) lower radiative efficiency and a harder X-ray spectrum with respect to classical Quasars; 2) lack or weak big-blue bump. Understanding the nature of the accretion flow in LLAGN is crucial for elucidating their evolution and fueling mechanisms, and for constraining the growth of supermassive black holes in the local universe.
The project aims to study the optical and X-ray properties of a sample of LLAGN extracted from the Lemmings survey (Baldi et al. 2018), focusing specifically on sources with X-ray detection and direct UV data from HST, in order to calibrate the LUV–aox relation, and derive the intrinsic distribution of accretion rates.

Requirements
Additional Information
Eligibility criteria

to apply for research grants fill out the form available at the following address: https://bandi.unibo.it/ricerca/assegni-ricerca

Eligible destination country/ies for fellows:

• Italy

Eligibility of fellows: country/ies of residence:

• All

Eligibility of fellows: nationality/ies:

• All

Website for additional job details

https://bandi.unibo.it/ricerca/assegni-ricerca

Work Location(s)

Number of offers available

1

Company/Institute

ALMA MATER STUDIORUM – UNIVERSITA’ DI BOLOGNA – – DIPARTIMENTO DI FISICA E ASTRONOMIA

Country

Italy

Where to apply

Website

http://www.unibo.it

Contact

City

Bologna

Website

http://www.unibo.it

STATUS: EXPIRED