%0 Generic %1 pozzi2019function %A Pozzi, F. %A Calura, F. %A Zamorani, G. %A Delvecchio, I. %A Gruppioni, C. %A Santini, P. %D 2019 %K Dust observations simulation %T The dust mass function from z~0 to z~2 %U http://arxiv.org/abs/1909.11333 %X We derive for the first time the dust mass function (DMF) in a wide redshift range, from z~0.2 up to z~2.5. In order to trace the dust emission, we start from a far-IR (160-um) Herschel selected catalogue in the COSMOS field. We estimate the dust masses by fitting the far-IR data (lam_rest>50um) with a modified black body function and we present a detailed analysis to take into account the incompleteness in dust masses from a far-IR perspective. By parametrizing the observed DMF with a Schechter function in the redshift range 0.1<z<0.25, where we are able to sample faint dust masses, we measure a steep slope (alpha~1.48), as found by the majority of works in the Local Universe. We detect a strong dust mass evolution, with M_d^star at z~2.5 almost one dex larger than in the local Universe, combined with a decrease in their number density. Integrating our DMFs we estimate the dust mass density (DMD), finding a broad peak at z~1, with a decrease by a factor of ~3 towards z~0 and z~2.5. In general, the trend found for the DMD mostly agrees with the derivation of Driver et al. (2018), another DMD determination based also on far-IR detections, and with other measures based on indirect tracers.

@misc{pozzi2019function, abstract = {We derive for the first time the dust mass function (DMF) in a wide redshift range, from z~0.2 up to z~2.5. In order to trace the dust emission, we start from a far-IR (160-um) Herschel selected catalogue in the COSMOS field. We estimate the dust masses by fitting the far-IR data (lam_rest>50um) with a modified black body function and we present a detailed analysis to take into account the incompleteness in dust masses from a far-IR perspective. By parametrizing the observed DMF with a Schechter function in the redshift range 0.1<z<0.25, where we are able to sample faint dust masses, we measure a steep slope (alpha~1.48), as found by the majority of works in the Local Universe. We detect a strong dust mass evolution, with M_d^star at z~2.5 almost one dex larger than in the local Universe, combined with a decrease in their number density. Integrating our DMFs we estimate the dust mass density (DMD), finding a broad peak at z~1, with a decrease by a factor of ~3 towards z~0 and z~2.5. In general, the trend found for the DMD mostly agrees with the derivation of Driver et al. (2018), another DMD determination based also on far-IR detections, and with other measures based on indirect tracers.}, added-at = {2019-09-26T07:20:59.000+0200}, author = {Pozzi, F. and Calura, F. and Zamorani, G. and Delvecchio, I. and Gruppioni, C. and Santini, P.}, biburl = {https://www.bibsonomy.org/bibtex/2b6d6477ba282d6732ceefe41470f7b01/rana_7690}, description = {The dust mass function from z~0 to z~2}, interhash = {caa36e74695a005cd265bb6f09d5f81b}, intrahash = {b6d6477ba282d6732ceefe41470f7b01}, keywords = {Dust observations simulation}, note = {cite arxiv:1909.11333Comment: MNRAS in press, 12 pages, 6 pages}, timestamp = {2019-09-26T07:20:59.000+0200}, title = {The dust mass function from z~0 to z~2}, url = {http://arxiv.org/abs/1909.11333}, year = 2019 }