Outputs (8)

Molecular gas content in obscured AGN at z > 1 (2018)
Journal Article
Perna, M., Sargent, M., Brusa, M., Daddi, E., Feruglio, C., Cresci, G., …Vignali, C. (2018). Molecular gas content in obscured AGN at z > 1. Astronomy & Astrophysics, 619, Article A90. https://doi.org/10.1051/0004-6361/201833040

Aims. The standard active galactic nuclei (AGN)-galaxy co-evolutionary scenario predicts a phase of deeply “buried” supermassive black hole growth coexisting with a starburst (SB) before feedback phenomena deplete the cold molecular gas reservoir of... Read More about Molecular gas content in obscured AGN at z > 1.

Towards an informed quest for accretion disc winds in quasars: the intriguing case of Ton 28 (2018)
Journal Article
Nardini, E., Lusso, E., & Bisogni, S. (2019). Towards an informed quest for accretion disc winds in quasars: the intriguing case of Ton 28. Monthly Notices of the Royal Astronomical Society: Letters, 482(1), L134-L138. https://doi.org/10.1093/mnrasl/sly204

We report on the detection of a blueshifted Fe K absorption feature in two consecutive XMM–Newton  observations of the luminous blue quasar Ton 28, at the 4σ cumulative significance. The rest energy of 9.2 keV implies the presence of an accretion dis... Read More about Towards an informed quest for accretion disc winds in quasars: the intriguing case of Ton 28.

QSO MUSEUM I: a sample of 61 extended Ly α-emission nebulae surrounding z ∼ 3 quasars (2018)
Journal Article
Arrigoni Battaia, F., Hennawi, J. F., Prochaska, J. X., Oñorbe, J., Farina, E. P., Cantalupo, S., & Lusso, E. (2019). QSO MUSEUM I: a sample of 61 extended Ly α-emission nebulae surrounding z ∼ 3 quasars. Monthly Notices of the Royal Astronomical Society, 482(3), 3162-3205. https://doi.org/10.1093/mnras/sty2827

Motivated by the discovery of rare enormous Lyman α nebulae (ELAN) around z ∼ 2 quasars, we initiated a long-term campaign with the MUSE/VLT instrument to directly uncover the astrophysics of the gas around quasars. We present here the first 61 targe... Read More about QSO MUSEUM I: a sample of 61 extended Ly α-emission nebulae surrounding z ∼ 3 quasars.

The Spectral and Environment Properties of z ∼ 2.0–2.5 Quasar Pairs (2018)
Journal Article
Lusso, E., Fumagalli, M., Rafelski, M., Neeleman, M., Prochaska, J. X., Hennawi, J. F., …Theuns, T. (2018). The Spectral and Environment Properties of z ∼ 2.0–2.5 Quasar Pairs. Astrophysical Journal, 860(1), Article 41. https://doi.org/10.3847/1538-4357/aac514

We present the first results from our survey of intervening and proximate Lyman limit systems (LLSs) at z ~ 2.0–2.5 using the Wide Field Camera 3 on board the Hubble Space Telescope. The quasars in our sample are projected pairs with proper transvers... Read More about The Spectral and Environment Properties of z ∼ 2.0–2.5 Quasar Pairs.

X-Ray Properties of AGN in Brightest Cluster Galaxies. I. A Systematic Study of the Chandra Archive in the 0.2 < z < 0.3 and 0.55 < z < 0.75 Redshift Range (2018)
Journal Article
Yang, L., Tozzi, P., Yu, H., Lusso, E., Gaspari, M., Gilli, R., …Risaliti, G. (2018). X-Ray Properties of AGN in Brightest Cluster Galaxies. I. A Systematic Study of the Chandra Archive in the 0.2 < z < 0.3 and 0.55 < z < 0.75 Redshift Range. Astrophysical Journal, 859(1), Article 65. https://doi.org/10.3847/1538-4357/aabfd7

We present a search for nuclear X-ray emission in the brightest cluster galaxies (BCGs) of a sample of groups and clusters of galaxies extracted from the Chandra archive. The exquisite angular resolution of Chandra allows us to obtain robust photomet... Read More about X-Ray Properties of AGN in Brightest Cluster Galaxies. I. A Systematic Study of the Chandra Archive in the 0.2 < z < 0.3 and 0.55 < z < 0.75 Redshift Range.

Molecular outflow and feedback in the obscured quasar XID2028 revealed by ALMA (2018)
Journal Article
Brusa, M., Cresci, G., Daddi, E., Paladino, R., Perna, M., Bongiorno, A., …Bonaglia, M. (2018). Molecular outflow and feedback in the obscured quasar XID2028 revealed by ALMA. Astronomy & Astrophysics, 612, Article A29. https://doi.org/10.1051/0004-6361/201731641

We imaged, with ALMA and ARGOS/LUCI, the molecular gas and dust and stellar continuum in XID2028, which is an obscured quasi-stellar object (QSO) at z = 1.593, where the presence of a massive outflow in the ionised gas component traced by the [OIII]5... Read More about Molecular outflow and feedback in the obscured quasar XID2028 revealed by ALMA.

A Hubble Diagram for Quasars (2018)
Journal Article
Bisogni, S., Risaliti, G., & Lusso, E. (2018). A Hubble Diagram for Quasars. Frontiers in Astronomy and Space Sciences, 4, Article 68. https://doi.org/10.3389/fspas.2017.00068

The cosmological model is at present not tested between the redshift of the farthest observed supernovae (z ~ 1.4) and that of the Cosmic Microwave Background (z ~ 1,100). Here we introduce a new method to measure the cosmological parameters: we show... Read More about A Hubble Diagram for Quasars.

The Physical Relation between Disc and Coronal Emission in Quasars (2018)
Journal Article
Lusso, E., & Risaliti, G. (2018). The Physical Relation between Disc and Coronal Emission in Quasars. Frontiers in Astronomy and Space Sciences, 4, Article 66. https://doi.org/10.3389/fspas.2017.00066

We propose a modified version of the observed non-linear relation between the X-ray (2 keV) and the ultraviolet (2,500 Å) emission in quasars (i.e., LX∝LγUV) which involves the full width at half-maximum, FWHM, of the broad emission line, i.e., LX∝Lγ... Read More about The Physical Relation between Disc and Coronal Emission in Quasars.