News

News related to the BASS project

(19 January 2018)

Conference: Local hard X-ray selected AGN across the multi-wavelength spectrum

The second BASS conference will be held in ESO (Santiago, Chile) from 12th to 16th in March 2018.

  • Time: 12 - 16 (Mon. - Fri.) March 2018
  • Venue: ESO, Santiago, Chile
More details of the conference including scientific rationale and registration are available here.


(28 September 2017)

BASS paper VII is published in Nature

The 7th BASS paper (Ricci et al. 2017) titled 'The close environments of accreting massive black holes are shaped by radiative feedback' is published in Nature.
The location and evolution of gas and dust that obscure central supermassive black hole have been one of the most actively studied topics in black hole astrophysics. In this recently published paper, Ricci et al. (2017) showed that the main physical mechanism regulating dust distribution in the vicinity of central supermassive black hole is radiation pressure.
See the full article from here (Nature).
Find out more press releases below:


(19 July 2017, updated on 19th January 2018)

Special Session at the 231st AAS Winter Meeting

Special session for BASS project at the AAS Winter Meeting (231st) was successfully held.
With a title of 'New Results on Nearby AGN with Swift BAT', 9 invited talks and 3 invited posters were presented during 90 minutes of the special session.

  • Time: 2:00pm, 11th (Thursday) January 2018
  • Venue: Gaylord National Resort & Convention Center, Washington DC, USA

List of speakers and talk titles

Time Speaker Title
2:00 - 2:10 Michael Koss The BAT AGN Spectroscopic Survey (BASS) DR1-Spectral Measurements, Derived Quantities, and AGN Demographics
2:10 - 2:20 Claudio Ricci The Obscuration Properties of Local AGN
2:20 - 2:30 Kyuseok Oh The 105 month Swift-BAT data release
2:30 - 2:40 Benny Trakhtenbrot The ΓX-L/LEdd relation in BAT AGN Spectroscopic Survey (BASS)
2:40 - 2:50 Ezequiel Treister Multiwavelength Studies of Dual AGN in the Swift/BAT Sample
2:50 - 3:00 Meredith Powell AGN Clustering in the BAT Sample
3:00 - 3:10 Lia F. Sartori Longterm AGN variability in the BASS sample
3:10 - 3:20 Anna K. Weigel The joint fit of the BHMF and ERDF for the BAT AGN Sample
3:20 - 3:30 Thomas T. Shimizu The LLAMA Project: A SINFONI Study of Gas Outflows and Feeding in Local, X-ray Selected AGN

List of author and poster titles

Time Author Title
5:30 - 6:30 Peter G. Boorman An unbiased view of X-ray obscuration amongst active galactic nuclei with NuLANDS
5:30 - 6:30 Michael Koss Tending the Fire, A Legacy Survey of Molecular Gas Fueling in Powerful Nearby AGN
5:30 - 6:30 Amy Lien The status of BAT detector

(16 Feb 2016)

Conference: X-ray view of Black Hole Activity in the Local Universe

From 17 to 19 February 2016, the conference "X-ray View of Black Hole Activity in the Local Universe" takes place on the ETH Honggerberg campus.
More than 30 partcipants from all over the world meet in the HIT building (ETH Zurich) to present and discuss the latest results of space-based X-ray missions to observe nearby supermassive black-hole growth (such as NuSTAR, Swift and Maxi).
Discussions include current topics in the field as well as the question of what can be learned from future X-ray missions.

  • Time: 17 - 19 (Wed. - Fri.) February 2016
  • Venue: HIT E51, ETH Zurich, Switzerland

All talk materials (32 speakers) are available here.
See more detail about the conference here including photos.