Detection of H<sub>2</sub>O and OH<sup>+</sup> in <i>z</i> > 3 hot dust-obscured galaxies
نویسندگان
چکیده
In this paper we present the detection of H2O and OH+ emission in z>3 hot dust-obscured galaxies (Hot DOGs). Using ALMA Band-6 observations two Hot DOGs, have detected H2O(2_02-1_11) W0149+2350, H2O(3_12-3_03) multiplet OH+(1_1-0_1) W0410-0913. We find that both sources luminous with line luminosities L_H2O > 2.2x10^8 Lsol = 8.7x10^8 for W0149+2350 W0410-0913, respectively. The profiles are similar to those seen neighbouring CO(9-8) line, linewidths FWHM ~ 800-1000 km/s. However, seems be more compact than CO(9-8). is a FWHM=1000km/s luminosity L_OH+ 6.92x10^8 Lsol. ratio observed over IR luminosity, consistent previously star forming AGN. H2O/CO DOGs OH+/H2O W0410-0913 comparable AGN literature. bright H2O(2_02-1_11), lines likely due combined high formation levels these sources. presence emission, agreement ratios literature, would suggest dominating radiative output galaxies. followup multi-transition needed better constrain properties systems.
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ژورنال
عنوان ژورنال: Astronomy and Astrophysics
سال: 2021
ISSN: ['0004-6361', '1432-0746']
DOI: https://doi.org/10.1051/0004-6361/202037888