NOAO >   Observing Info >   Approved Programs >   2013A-0535

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Proposal Information for 2013A-0535


PI: Rachel Mason, Gemini Observatory, rmason@gemini.edu
Address: Gemini Observatory, 670 N. Aohoku Place, Hilo, HI 96720, USA

CoI: Rogerio Riffel, Universidade Federal do Rio Grande do Sul (UFRGS)
CoI: Alberto Rodriguez-Ardila, Laboratorio Nacional de Astrofisica (LNA/MCT)
CoI: Daniel Ruschel Dutra, Universidade Federal do Rio Grande do Sul (UFRGS)
CoI: Almudena Alonso-Herrero, Universidad de Cantabria
CoI: Luis Colina, Centro de Astrobiologia
CoI: Ruben Diaz, Gemini Observatory
CoI: Tanio Diaz-Santos, Caltech IPAC
CoI: Helene Flohic, Universidad de Chile
CoI: Percy Gomez, Gemini Observatory
CoI: Omaira Gonzalez-Martin, Instituto de Astrofisica de Canarias
CoI: Luis Ho, Carnegie Institution of Washington (Carnegie Obs.)
CoI: Inger Jorgensen, Gemini Observatory
CoI: Marie Lemoine-Busserolle, Gemini Observatory
CoI: Nancy Levenson, Gemini Observatory
CoI: Paulina Lira, Universidad de Chile
CoI: Richard McDermid, Gemini Observatory
CoI: Eric Perlman, Florida Institute of Technology
CoI: Ricardo Schiavon, Gemini Observatory
CoI: Cristina Ramos Almeida, Instituto de Astrofisica de Canarias
CoI: Karun Thanjavur, Canada-France-Hawaii Telescope Corporation
CoI: Claudia Winge, Gemini Observatory

Title: NIR spectroscopy of Palomar AGN

Abstract: We propose to continue our infrared investigation of Palomar AGN with GNIRS cross- dispersed spectroscopy of a further 27 Seyferts and LINERs. The spectra will advance our knowledge of AGN physics and lifecycles by demonstrating whether the accretion disk and nuclear dust properties change as a function of accretion rate, as predicted by theoretical models. They will be used to investigate the mechanisms powering the emission lines, with implications for AGN demographics, and to assess the contribution of AGB stars and late-type dwarfs to the NIR light. The number and variety of spectral features that will appear in the data are expected to enable a wide range of science besides that highlighted in this proposal. For this reason, we plan to quickly make the reduced spectra available to the community (see technical section). We anticipate applying for time to observe the remaining AGN in the (near-complete) Palomar sample over the next few semesters. The targets are distributed throughout the northern sky, making Gemini's queue mode ideal for this work. The fairly short observations are easily scheduled and can be carried out in suboptimal observing conditions.


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