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ALMA Reveals the Molecular Gas Properties of Five Star-forming Galaxies across the Main Sequence at 3
Astrophysical Journal, 891 (2020), 1; 83. https://doi.org/10.3847/1538-4357/ab7452
Cassata, Paolo; Liu, Daizhong; Groves, Brent; Schinnerer, Eva; Ibar, Eduardo; Sargent, Mark; Karim, Alexander; Talia, Margherita; Fèvre, Olivier Le; Tasca, Lidia; Lemaux, Brian C.; Ribeiro, Bruno; Fiore, Stefano; Romano, Michael; Mancini, Chiara; Morselli, Laura; Rodighiero, Giulia; Rodríguez-Muñoz, Lucía; Enia, Andrea; Smolčić, Vernesa Više autora...

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Cassata, P., Liu, D., Groves, B., Schinnerer, E., Ibar, E., Sargent, M. ... Smolčić, V. (2020). ALMA Reveals the Molecular Gas Properties of Five Star-forming Galaxies across the Main Sequence at 3. Astrophysical Journal, 891. (1). doi: 10.3847/1538-4357/ab7452

Cassata, Paolo, et al. "ALMA Reveals the Molecular Gas Properties of Five Star-forming Galaxies across the Main Sequence at 3." Astrophysical Journal, vol. 891, br. 1, 2020. https://doi.org/10.3847/1538-4357/ab7452

Cassata, Paolo, Daizhong Liu, Brent Groves, Eva Schinnerer, Eduardo Ibar, Mark Sargent, Alexander Karim, et al. "ALMA Reveals the Molecular Gas Properties of Five Star-forming Galaxies across the Main Sequence at 3." Astrophysical Journal 891, br. 1 (2020). https://doi.org/10.3847/1538-4357/ab7452

Cassata, P., et al. (2020) 'ALMA Reveals the Molecular Gas Properties of Five Star-forming Galaxies across the Main Sequence at 3', Astrophysical Journal, 891(1). doi: 10.3847/1538-4357/ab7452

Cassata P, Liu D, Groves B, Schinnerer E, Ibar E, Sargent M, i sur.. ALMA Reveals the Molecular Gas Properties of Five Star-forming Galaxies across the Main Sequence at 3. Astrophysical Journal [Internet]. 2020. [pristupljeno 22.03.2025.];891(1). doi: 10.3847/1538-4357/ab7452

P. Cassata, et al., "ALMA Reveals the Molecular Gas Properties of Five Star-forming Galaxies across the Main Sequence at 3", Astrophysical Journal, vol. 891, br. 1, 2020. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:953449. [Citirano: 22.03.2025.]

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Naslov (engleski)ALMA Reveals the Molecular Gas Properties of Five Star-forming Galaxies across the Main Sequence at 3
AutorPaolo Cassata
AutorDaizhong Liu
AutorBrent Groves
AutorEva Schinnerer
AutorEduardo Ibar
AutorMark Sargent
AutorAlexander Karim
AutorMargherita Talia
AutorOlivier Le Fèvre
AutorLidia Tasca
AutorBrian C. Lemaux
AutorBruno Ribeiro
AutorStefano Fiore
AutorMichael Romano
AutorChiara Mancini
AutorLaura Morselli
AutorGiulia Rodighiero
AutorLucía Rodríguez-Muñoz
AutorAndrea Enia
AutorVernesa Smolčić
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Astronomija i astrofizika
Sažetak (engleski)
We present the detection of CO (5−4) with signal-to-noise ratio (S/N) > 7–13 and a lower CO transition with S/N > 3 (CO (4−3) for four galaxies, and CO (3−2) for one) with the Atacama Large Millimeter/submillimeter Array in bands 3 and 4 in five main-sequence (MS) star-forming galaxies with stellar masses (3– 6) × 10^10M_⊙ at 3 < z < 3.5. We find a good correlation between the total far-infrared luminosity L_FIR and the luminosity of the CO (5−4) transition ( ) L'_CO(5-4), where... Više L'_CO(5-4) - increases with star formation rate (SFR), indicating that CO (5−4) is a good tracer of the obscured SFR in these galaxies. The two galaxies that lie closer to the star-forming MS have CO spectral line energy distribution (SLED) slopes that are comparable to other star-forming populations, such as local submillimeter galaxies and BzK star- forming galaxies ; the three objects with higher specific star formation rates have far steeper CO SLEDs, which possibly indicates a more concentrated episode of star formation. By exploiting the CO SLED slopes to extrapolate the luminosity of the CO (1−0) transition and using a classical conversion factor for MS galaxies of α_CO = 3.8 M_⊙ (K km s^-1 pc^-2)^-1, we find that these galaxies are very gas-rich, with molecular gas fractions between 60% and 80% and quite long depletion times, between 0.2 and 1 Gyr. Finally, we obtain dynamical masses that are comparable to the sum of stellar and gas mass (at least for four out of five galaxies), allowing us to put a first constraint on the α_CO parameter for MS galaxies at an unprecedented redshift. Sakrij dio sažetka
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. 891, br. 1, 83
p-ISSN0004-637X
e-ISSN1538-4357
DOIhttps://doi.org/10.3847/1538-4357/ab7452
URN:NBNurn:nbn:hr:217:953449
Datum objave publikacije2020
URL dokumentahttps://iopscience.iop.org/article/10.3847/1538-4357/ab7452
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Javna napomena© 2020. The American Astronomical Society. All rights reserved. Received 2019 July 26. Accepted 2020 February 8. Published 2020 March 6.
Datum i vrijeme pohrane2020-08-27 20:16:52
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