SDSS-IV MaNGA: Spatially Resolved Star Formation Main Sequence and LI(N) ER Sequence
Por:
Hsieh, B. C., Lin, Lihwai, Lin, J. H., Pan, H. A., Hsu, C. H., Sanchez, S. F., Cano-Diaz, M., Zhang, K., Yan, R., Barrera-Ballesteros, J. K., Boquien, M., Riffel, R., Brownstein, J., Cruz-Gonzalez, I., Hagen, A., Ibarra, H., Pan, K., Bizyaev, D., Oravetz, D., Simmons, A.
Publicada:
20 dic 2017
Resumen:
We present our study on the spatially resolved H alpha and M-*
relation for 536 star-forming and 424 quiescent galaxies taken from the
MaNGA survey. We show that the star formation rate surface density
(Sigma(SFR)), derived based on the Ha. emissions, is strongly correlated
with the M-* surface density (Sigma(*)) on kiloparsec scales for
star-forming galaxies and can be directly connected to the global
star-forming sequence. This suggests that the global main sequence may
be a consequence of a more fundamental relation on small scales. On the
other hand, our result suggests that similar to 20% of quiescent
galaxies in our sample still have star formation activities in the outer
region with lower specific star formation rate (SSFR) than typical
star-forming galaxies. Meanwhile, we also find a tight correlation
between Sigma(H alpha) and Sigma(*) for LI(N)ER regions, named the
resolved ``LI(N)ER'' sequence, in quiescent galaxies, which is
consistent with the scenario that LI(N)ER emissions are primarily
powered by the hot, evolved stars as suggested in the literature.
Filiaciones:
Hsieh, B. C.:
Acad Sinica, Inst Astron & Astrophys, POB 23-141, Taipei 106, Taiwan
Lin, Lihwai:
Acad Sinica, Inst Astron & Astrophys, POB 23-141, Taipei 106, Taiwan
Lin, J. H.:
Acad Sinica, Inst Astron & Astrophys, POB 23-141, Taipei 106, Taiwan
Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
Pan, H. A.:
Acad Sinica, Inst Astron & Astrophys, POB 23-141, Taipei 106, Taiwan
Hsu, C. H.:
Acad Sinica, Inst Astron & Astrophys, POB 23-141, Taipei 106, Taiwan
Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan
Sanchez, S. F.:
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico
Cano-Diaz, M.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Mexico City 04510, DF, Mexico
Zhang, K.:
Univ Kentucky, Dept Phys & Astron, 177 Chem Phys Bldg,505 Rose St, Lexington, KY 40506 USA
Yan, R.:
Univ Kentucky, Dept Phys & Astron, 177 Chem Phys Bldg,505 Rose St, Lexington, KY 40506 USA
Barrera-Ballesteros, J. K.:
Johns Hopkins Univ, Zanvyl Krieger Sch Arts & Sci, Bloomberg Ctr Phys & Astron, Dept Phys & Astron, Baltimore, MD 21218 USA
Boquien, M.:
Univ Antofagasta, Unidad Astron, Ave Angamos 601, Antofagasta 1270300, Chile
Riffel, R.:
Univ Fed Rio Grande do Sul, Inst Fis, Campus Vale, BR-91501970 Porto Alegre, RS, Brazil
Lab Interinst E Astron, Rua Gen Jose Cristino,77 Vasco da Gama, BR-20921400 Rio De Janeiro, Brazil
Brownstein, J.:
Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA
Cruz-Gonzalez, I.:
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico
Hagen, A.:
Penn State Univ, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA
Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA
Ibarra, H.:
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, DF, Mexico
Pan, K.:
New Mexico State Univ, POB 59, Sunspot, NM 88349 USA
Apache Point Observ, POB 59, Sunspot, NM 88349 USA
Bizyaev, D.:
New Mexico State Univ, POB 59, Sunspot, NM 88349 USA
Apache Point Observ, POB 59, Sunspot, NM 88349 USA
Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow, Russia
Oravetz, D.:
New Mexico State Univ, POB 59, Sunspot, NM 88349 USA
Apache Point Observ, POB 59, Sunspot, NM 88349 USA
Simmons, A.:
New Mexico State Univ, POB 59, Sunspot, NM 88349 USA
Apache Point Observ, POB 59, Sunspot, NM 88349 USA
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