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http://hdl.handle.net/20.500.12386/30250
Titolo: | Exploring the Evolution of Star Formation and Dwarf Galaxy Properties with JWST/MIRI Serendipitous Spectroscopic Surveys | Autori: | BONATO, MATTEO Sajina, Anna DE ZOTTI, Gianfranco McKinney, Jed BARONCHELLI, IVANO Negrello, Mattia Marchesini, Danilo Roebuck, Eric Shipley, Heath Kurinsky, Noah Pope, Alexandra Noriega-Crespo, Alberto Yan, Lin Kirkpatrick, Allison |
Data pubblicazione: | 2017 | Rivista: | THE ASTROPHYSICAL JOURNAL | Numero: | 836 | Fascicolo: | 2 | Da pagina:: | 171 | Abstract: | The James Webb Space Telescope’s Medium Resolution Spectrometer (MRS), will offer nearly two orders of magnitude improvement in sensitivity and >3× improvement in spectral resolution over our previous space-based mid-IR spectrometer, the Spitzer IRS. In this paper, we make predictions for spectroscopic pointed observations and serendipitous detections with the MRS. Specifically, pointed observations of Herschel sources require only a few minutes on source integration for detections of several star-forming and active galactic nucleus lines, out to z = 3 and beyond. But the same data will also include tens of serendipitous 0 ≲ z ≲ 4 galaxies per field with infrared luminosities ranging ∼10<SUP>6</SUP>-10<SUP>13</SUP> L <SUB>☉</SUB>. In particular, for the first time and for free we will be able to explore the L <SUB>IR</SUB> < 10<SUP>9</SUP> L <SUB>☉</SUB> regime out to z ∼ 3. We estimate that with ∼ 100 such fields, statistics of these detections will be sufficient to constrain the evolution of the low-L end of the infrared luminosity function, and hence the star formation rate function. The above conclusions hold for a wide range in the potential low-L end of the IR luminosity function, and account for the PAH deficit in low-L, low-metallicity galaxies. | URI: | http://hdl.handle.net/20.500.12386/30250 | URL: | https://iopscience.iop.org/article/10.3847/1538-4357/aa5c85 | ISSN: | 0004-637X | DOI: | 10.3847/1538-4357/aa5c85 | Bibcode ADS: | 2017ApJ...836..171B | Fulltext: | open |
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