Tanio Diaz Santos's research while affiliated with Universidad Diego Portales and other places

Publications (10)

Article
Full-text available
We present a detailed analysis of 11 local luminous infrared galaxies from ultraviolet through far-infrared to radio (∼70 MHz to ∼15 GHz) bands. We derive the astrophysical properties through spectral energy distribution (SED) modeling using the Code Investigating GALaxy Emission (CIGALE) and UltraNest codes. The radio SEDs include our new observat...
Preprint
Full-text available
We present the detailed analysis of 11 local luminous infrared galaxies (LIRGs) from ultraviolet through far-infrared to radio ($\sim$70 MHz to $\sim$15 GHz) bands. We derive the astrophysical properties through spectral energy distribution (SED) modeling using the Code Investigating GALaxy Emission (CIGALE) and UltraNest codes. The radio SEDs incl...
Article
Full-text available
We present an Atacama Large Millimeter/submillimeter Array observation of the Submillimeter galaxy ID 141 at z = 4.24 in the [N II] 205 μm line (hereafter [N II] ) and the underlying continuum at (rest-frame) 197.6 μm. Benefiting from lensing magnification by a galaxy pair at z = 0.595, ID 141 is one of the brightest $z\gt 4$ SMGs. At the angular r...
Preprint
Full-text available
We present the Atacama Large Millimeter/submillimeter Array (ALMA) observation of the Sub-millimeter galaxy (SMG) ID 141 at z=4.24 in the [N II] 205 $\mu$m line (hereafter [N II]) and the underlying continuum at (rest-frame) 197.6 $\mu$m. Benefiting from lensing magnification by a galaxy pair at z=0.595, ID 141 is one of the brightest z$>4$ SMGs. A...
Preprint
One of the last missing pieces in the puzzle of galaxy formation and evolution through cosmic history is a detailed picture of the role of the cold gas supply in the star-formation process. Cold gas is the fuel for star formation, and thus regulates the buildup of stellar mass, both through the amount of material present through a galaxy's gas mass...
Article
One of the last missing pieces in the puzzle of galaxy formation and evolution through cosmic history is a detailed picture of the role of the cold gas supply in the star-formation process. Cold gas is the fuel for star formation, and thus regulates the buildup of stellar mass, both through the amount of material present through a galaxy's gas mass...
Article
Galaxies grow their supermassive black holes in concert with their stars, although the relationship between these major galactic components is poorly understood. Observations of the cosmic growth of stars and black holes in galaxies suffer from disjoint samples and the strong effects of dust attenuation. The thermal infrared holds incredible potent...
Preprint
Galaxies grow their supermassive black holes in concert with their stars, although the relationship between these major galactic components is poorly understood. Observations of the cosmic growth of stars and black holes in galaxies suffer from disjoint samples and the strong effects of dust attenuation. The thermal infrared holds incredible potent...
Article
Full-text available
We present high-resolution (0.″17 ×0.″14) Atacama Large Millimeter/submillimeter Array (ALMA) observations of the CO (6-5) line and 435 μm dust continuum emission within a ∼9″ ×9″ area centered on the nucleus of the galaxy NGC 5135. NGC 5135 is a well-studied luminous infrared galaxy that also harbors a Compton-thick active galactic nucleus (AGN)....
Preprint
Full-text available
We present high-resolution (0.17\arcsec $\times$ 0.14\arcsec) Atacama Large Millimeter/submillimeter Array (ALMA) observations of the CO\,(6-5) line, and 435\um\ dust continuum emission within a $\sim$9\arcsec $\times$ 9\arcsec\ area centered on the nucleus of the galaxy NGC\,5135. NGC\,5135 is a well-studied luminous infrared galaxy that also harb...

Citations

... As a result of its interest, ID141 has been observed many times in the submillimetre/millimetre wavebands (Cox et al. 2011 ;Bussmann et al. 2012Bussmann et al. , 2013Omont et al. 2013 ;Dye et al. 2018 ;Cheng et al. 2020 ). Lens modelling by Dye et al. ( 2018 , D18 hereafter) and Enia et al. ( 2018 ) revealed evidence of a disturbed morphology in the reconstructed continuum emission of the source (see also Bussmann et al. 2012 who showed that significant image residuals remain after subtracting the best-fitting lensed image of a single smooth source). ...
... Currently, there is an order of magnitude gap in our wavelength coverage between JWST and ALMA which could be filled with a future cold far-IR space telescope. Figure is adapted from Pope et al. [195]. ...
... The ngVLA will deliver such an improvement as illustrated by the yellow data points which show the precision that would be reached by a 1000 hr survey. [Reproduced from 66] Beyond z 3, CO has only been detected in quasar host, sub-mm, and highly magnified galaxies, providing no information on the properties for typical galaxies that represent the bulk of the luminosity function at those redshifts. Consequently, precise measurements of the molecular gas content of galaxies over cosmic time remain one of the last missing pieces for constructing a complete picture for galaxy formation and evolution given the already fairly tight constraints on the evolution of both the star formation and stellar mass of galaxies out to z ∼ 6 [e.g., 67]. ...
... With the addition of six local IR QSOs that have been published in CO detections previously, we have a sample of 25 IR QSOs in total, which we consider as a representative IR QSO sample in the local universe (see Xia et al. 2012). Many local (U)LIRGs have well-resolved CO images (e.g., Wilson et al. 2008;Ueda et al. 2014;Xu et al. 2014Xu et al. , 2015Zhao et al. 2016aZhao et al. , 2017Cao et al. 2018), but up to now, the only IR QSO that has been well studied is the nearest one, Mrk231, which shows CO concentration in the central 1 kpc region with massive molecular outflow (e.g., Downes & Solomon 1998;Cicone et al. 2012;Feruglio et al. 2015). To fully characterize the molecular gas properties for IR QSOs, i.e., gas distribution, excitation, and kinematics, CO imaging observations of a large sample of IR QSOs with high spatial resolution are needed. ...