SIGNALS: I. Survey description

DOI: 
10.1093/mnras/stz2455
Publication date: 
01/11/2019
Main author: 
Rousseau-Nepton, L.
IAA authors: 
Duarte Puertas, S.;Iglesias-Páramo, J.;Vílchez, J. M.
Authors: 
Rousseau-Nepton, L.;Martin, R. P.;Robert, C.;Drissen, L.;Amram, P.;Prunet, S.;Martin, T.;Moumen, I.;Adamo, A.;Alarie, A.;Barmby, P.;Boselli, A.;Bresolin, F.;Bureau, M.;Chemin, L.;Fernandes, R. C.;Combes, F.;Crowder, C.;Della Bruna, L.;Duarte Puertas, S.;Egusa, F.;Epinat, B.;Ksoll, V. F.;Girard, M.;Gómez Llanos, V.;Gouliermis, D.;Grasha, K.;Higgs, C.;Hlavacek-Larrondo, J.;Ho, I. -T.;Iglesias-Páramo, J.;Joncas, G.;Kam, Z. S.;Karera, P.;Kennicutt, R. C.;Klessen, R. S.;Lianou, S.;Liu, L.;Liu, Q.;de Amorim, A. Luiz;Lyman, J. D.;Martel, H.;Mazzilli-Ciraulo, B.;McLeod, A. F.;Melchior, A. -L.;Millan, I.;Mollá, M.;Momose, R.;Morisset, C.;Pan, H. -A.;Pati, A. K.;Pellerin, A.;Pellegrini, E.;Pérez, I.;Petric, A.;Plana, H.;Rahner, D.;Ruiz Lara, T.;Sánchez-Menguiano, L.;Spekkens, K.;Stasińska, G.;Takamiya, M.;Vale Asari, N.;Vílchez, J. M.
Journal: 
Monthly Notices of the Royal Astronomical Society
Refereed: 
Yes
Publication type: 
Article
Volume: 
489
Pages: 
5530-5546
Abstract: 
SIGNALS, the Star formation, Ionized Gas, and Nebular Abundances Legacy Survey, is a large observing programme designed to investigate massive star formation and H II regions in a sample of local extended galaxies. The programme will use the imaging Fourier transform spectrograph SITELLE at the Canada-France-Hawaii Telescope. Over 355 h (54.7 nights) have been allocated beginning in fall 2018 for eight consecutive semesters. Once completed, SIGNALS will provide a statistically reliable laboratory to investigate massive star formation, including over 50 000 resolved H II regions: the largest, most complete, and homogeneous data base of spectroscopically and spatially resolved extragalactic H II regions ever assembled. For each field observed, three datacubes covering the spectral bands of the filters SN1 (363-386 nm), SN2 (482-513 nm), and SN3 (647-685 nm) are gathered. The spectral resolution selected for each spectral band is 1000, 1000, and 5000, respectively. As defined, the project sample will facilitate the study of small-scale nebular physics and many other phenomena linked to star formation at a mean spatial resolution of ̃20 pc. This survey also has considerable legacy value for additional topics, including planetary nebulae, diffuse ionized gas, and supernova remnants. The purpose of this paper is to present a general outlook of the survey, notably the observing strategy, galaxy sample, and science requirements.
Database: 
ADS
SCOPUS
URL: 
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075233610&doi=10.1093%2fmnras%2fstz2455&partnerID=40&md5=07a7285f0fe1fa5d03273e56b10710de
ADS Bibcode: 
2019MNRAS.489.5530R
Keywords: 
surveys;H <sc>ii</sc> regions;galaxies: star formation;Astrophysics - Astrophysics of Galaxies