{ "id": "2505.02253", "version": "v1", "published": "2025-05-04T21:24:31.000Z", "updated": "2025-05-04T21:24:31.000Z", "title": "Infrared-Selected Active Galactic Nuclei in the Kepler Fields", "authors": [ "Tran Tsan", "Matthew Malkan", "Rick Edelson", "Krista Smith", "Daniel Stern", "Matthew Graham" ], "comment": "Accepted by ApJS. 12 pages, 14 figures. Figure 2 is a figure set in the HTML edition, and it has 186 spectra of AGN candidates", "categories": [ "astro-ph.GA", "astro-ph.CO" ], "abstract": "We utilized the Edelson and Malkan (2012) and Stern et al. (2012) selection techniques and other methods to identify AGN candidates that were monitored during the Kepler prime and K2 missions. Subsequent to those observations, we obtained 125 long-slit optical spectra with the Lick 3-m telescope, 58 spectra with the Palomar 5-m telescope, and three with the Keck 10-m telescope to test these identifications. Of these 186 AGN candidates, 105 were confirmed as Type 1 AGN and 35 as Type 2 AGN, while the remaining 46 were found to have other identifications (e.g., stars and normal galaxies). This indicated an overall reliability of about 75%, while the two main methods had much higher reliability, 87%-96%. The spectra indicated redshifts out to z = 3.4. Then, we examined the AGN sample properties through the Baldwin, Phillips & Terlevich diagram and compared the AGN's spectral energy distributions (SEDs) with those from the literature. We found that our sample yielded the same AGN population as those identified through other methods, such as optical spectroscopy.", "revisions": [ { "version": "v1", "updated": "2025-05-04T21:24:31.000Z" } ], "analyses": { "keywords": [ "infrared-selected active galactic nuclei", "kepler fields", "agns spectral energy distributions", "agn candidates", "agn sample properties" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }