I Congreso de Postgrado fcfm: ingeniería, ciencias e innovación

32 Santiago, 10 al 12 de agosto, 2022 A S T RONOM Í A 01 HOW SUPER MASSIVE BLACK HOLE AFFECT THE QUIET LIFE OF THEIR HOST GALAXIES R. Cuellar¹ * , P. Noterdaeme², S. Lopez¹ ¹Departamento de Astronomia, Universida de Chile, Casilla 36-D, Santiago, Chile. ²Institut d’Astrophysique de Paris, CNRS-SU, UMR 7095, 98bis bd Arago, 75014, Paris, France. *Email: rodrigocuellart@gmail.com ABSTRACT I present a spectroscopic study of ten unobscured quasars at redshifts between 2.5 and 3.3. The spectra were obtained with the multi-wavelength spectrograph X-shooter on the Very Large Telescope. This spectrograph provides wavelength coverage from the ultra violet (UV) to the near infrared (NIR), corresponding to 300 nm to 2100 nm wavelength in the rest-frame of the quasars and thus including their emission lines [OII], [OIII] and Hβ. The final goal is to get information on the interaction of the gas (feedback) in each quasar and their host galaxy. In this talk I will present a preliminary analysis of the data. First, I will show how we corrected telluric absorption using the ESO-supported software molecfit. This step is needed to recover real lines that fall in the telluric absorption zones. Then, I will show our on-going analysis of the emission lines of the forbidden lines and doublet of [OII] and [OIII], and the Balmer line of Hβ in the NIR part of the spectra. This is performed using multiple Gaussian profile fits. Comparing the line redshifts and widths with those of CO and H2 (Noterdaeme et al 2021 and 2019), I’m able to get information about the distribution of the gas. With this work and studies about the kinematics of the gas, we will see the interaction between the super massive black hole and their host galaxy. ACKNOWLEDGMENTS I would like to thank P.N collaborators and the Arctomo group. REFERENCES [1] Noterdaeme, P., Balashev, S., Combes, F., et al 2021, A&A, 651, A17 [2] Noterdaeme, P., Balashev, S., Krogager, J.K., et al 2019, A&A, 627, A32 [3] Smette, A., Sana, H., Noll, S., et al 2015, A&A, 576, A77