prikaz prve stranice dokumenta Gas fraction and depletion time of massive star- forming galaxies at z similar to 3.2: no change in global star formation process out to z > 3
  Preuzmi
PDF 861.29 KB
Znanstveni rad - Izvorni znanstveni rad
Gas fraction and depletion time of massive star- forming galaxies at z similar to 3.2: no change in global star formation process out to z > 3
Astrophysical Journal, 833 (2016), 1; 112. https://doi.org/10.3847/1538-4357/833/1/112
Schinnerer, E.; Groves, B.; Sargent, M. T.; Karim, A.; Oesch, P. A.; Magnelli, B.; LeFevre, O.; Tasca, L.; Civano, F.; Cassata, P.; Smolčić, Vernesa

Citirajte ovaj rad

Schinnerer, E., Groves, B., Sargent, M. T., Karim, A., Oesch, P. A., Magnelli, B. ... Smolčić, V. (2016). Gas fraction and depletion time of massive star- forming galaxies at z similar to 3.2: no change in global star formation process out to z > 3. Astrophysical Journal, 833. (1). doi: 10.3847/1538-4357/833/1/112

Schinnerer, E., et al. "Gas fraction and depletion time of massive star- forming galaxies at z similar to 3.2: no change in global star formation process out to z > 3." Astrophysical Journal, vol. 833, br. 1, 2016. https://doi.org/10.3847/1538-4357/833/1/112

Schinnerer, E., B. Groves, M. T. Sargent, A. Karim, P. A. Oesch, B. Magnelli, O. LeFevre, et al. "Gas fraction and depletion time of massive star- forming galaxies at z similar to 3.2: no change in global star formation process out to z > 3." Astrophysical Journal 833, br. 1 (2016). https://doi.org/10.3847/1538-4357/833/1/112

Schinnerer, E., et al. (2016) 'Gas fraction and depletion time of massive star- forming galaxies at z similar to 3.2: no change in global star formation process out to z > 3', Astrophysical Journal, 833(1). doi: 10.3847/1538-4357/833/1/112

Schinnerer E, Groves B, Sargent MT, Karim A, Oesch PA, Magnelli B, i sur.. Gas fraction and depletion time of massive star- forming galaxies at z similar to 3.2: no change in global star formation process out to z > 3. Astrophysical Journal [Internet]. 2016. [pristupljeno 23.04.2024.];833(1). doi: 10.3847/1538-4357/833/1/112

E. Schinnerer, et al., "Gas fraction and depletion time of massive star- forming galaxies at z similar to 3.2: no change in global star formation process out to z > 3", Astrophysical Journal, vol. 833, br. 1, 2016. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:018182. [Citirano: 23.04.2024.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:018182
Prijavite se u repozitorij kako biste mogli spremiti objekt u svoju listu.
Podaci o radu
Naslov (engleski)Gas fraction and depletion time of massive star- forming galaxies at z similar to 3.2: no change in global star formation process out to z > 3
AutorE. Schinnerer
AutorB. Groves
AutorM. T. Sargent
AutorA. Karim
AutorP. A. Oesch
AutorB. Magnelli
AutorO. LeFevre
AutorL. Tasca
AutorF. Civano
AutorP. Cassata
AutorVernesa Smolčić
MBZ: 336180
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Astronomija i astrofizika
Sažetak (engleski)
The observed evolution of the gas fraction and its associated depletion time in main-sequence (MS) galaxies provides insights on how star formation proceeds over cosmic time. We report ALMA detections of the rest-frame ~300 μm continuum observed at 240 GHz for 45 massive (〈log(M_⋆(M_⊙))〉 = 10.7), normal star-forming (〈log(sSFR(yr^-1))〉 = -8.6), i.e., MS, galaxies at ≈ 3.2$ in the COSMOS field. From an empirical calibration between cold neutral, i.e., molecular and atomic, gas mass M_gas and monochromatic (rest-frame) infrared luminosity, the gas mass for this sample is derived. Combined with stellar mass M_⋆ and star formation rate (SFR) estimates (from MagPhys fits) we obtain a median gas fraction of μgas=Mgas/M_⋆=1.65_{-0.19}^{+0.18}$ and a median gas depletion time t_depl(Gyr)=M_gas/SFR=0.68_{-0.08}^{+0.07}; correction for the location on the MS will only slightly change the values. The reported uncertainties are the 1σ error on the median. Our results are fully consistent with the expected flattening of the redshift evolution from the 2-SFM (2 star formation mode) framework which empirically prescribes the evolution assuming a universal, log-linear relation between SFR and gas mass coupled to the redshift evolution of the specific star formation rate (sSFR) of MS galaxies. While t_depl shows only a mild dependence on location within the MS, a clear trend of increasing μ_gas across the MS is observed (as known from previous studies). Further, we comment on trends within the MS and (in)consistencies with other studies.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaAstrophysical Journal
Brojčani podacivol. 833, br. 1, 112
p-ISSN0004-637X
e-ISSN1538-4357
DOIhttps://doi.org/10.3847/1538-4357/833/1/112
URN:NBNurn:nbn:hr:217:018182
Datum objave publikacije2016
URL dokumentahttps://iopscience.iop.org/article/10.3847/1538-4357/833/1/112
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Javna napomena© 2016. The American Astronomical Society. Received 2016 June 10; revised 2016 October 6; accepted 2016 October 11; published 2016 December 12.
Datum i vrijeme pohrane2020-02-24 19:14:44