A dataset provided by the European Space Agency

Name: PUZZLING BROAD-LINE W1W2-DROPOUT QUASARS
Published: 2018-11-13T23:00:00Z

Proposal ID	080336
Title	PUZZLING BROAD-LINE W1W2-DROPOUT QUASARS
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0803360101
DOI	https://doi.org/10.5270/esa-7utydij
Principal Investigator, PI	Dr Enrico Piconcelli
Abstract	The WISE All-Sky Survey unveiled a population of extremely red, dust-enshroudedgalaxies, the so-called W1W2-dropout galaxies. Growing evidence indicates thatthey represent a very rare population of high-z hyper-luminous (~10^(14) Lsun),heavily obscured QSOs.We propose here to obtain the first X-ray observations oftwo exceptional W1W2-dropout QSOs at z~3 that, thanks to their opticalbroad-line classification, challenges this scenario. The clear view toward thecentral engine indeed offers the unique opportunity to accurately measure theX-ray luminosity of these extreme objects undergoing the transition from buriedto optically bright QSOs. Probing the nuclear properties of W1W2-dropout quasarscan clearly benefit our understanding of the AGN-galaxy co-evolution process.
Publications	Classification of 4XMM-DR9 sources by machine learning \|Zhang Yanxia Zhao Yongheng \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII O VIII and Fe L-shell Transitions \|Pan Zeyang Qu Zhijie et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez Antonio C. \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2017-10-22T11:27:52Z/2017-10-23T02:52:52Z
Version	17.56_20190403_1200
Mission Description	The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact	https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published	2018-11-13T23:00:00Z
Last Update	2025-01-27
Keywords	"z hyper luminous", "w1w2 dropout qsos", "central engine indeed", "growing evidence", "xray luminosity", "sky survey unveiled", "heavily obscured qsos", "rare population", "optically bright qsos", "nuclear properties", "w1w2 dropout quasars", "dust enshrouded galaxy"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Enrico Piconcelli, 2018, 'PUZZLING BROAD-LINE W1W2-DROPOUT QUASARS', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-7utydij