The Regulation of Galaxy Growth along the Size–Mass Relation by Star Formation, as Traced by Hα in KMOS<sup>3D</sup> Galaxies at 0.7 ≲ z ≲ 2.7*

Wilman, David J.; Fossati, M.; Mendel, J. Trevor; Saglia, R.; Wisnioski, Emily; Wuyts, Stijn; Schreiber, N. Förster; Beifiori, A.; Bender, R.; Belli, Sirio; Übler, Hannah; Lang, P.; Chan, J.; Davies, R. L.; Nelson, Erica J.; Genzel, R.; Tacconi, L. J.; Galametz, A.; Lutz, D.; Price, Sedona H.; Burkert, Andreas; Tadaki, Ken-ichi; Herrera-Camus, Rodrigo; Brammer, Gabriel; Momcheva, Ivelina; Dokkum, Pieter van

doi:10.3847/1538-4357/ab7914

Cited by 67 publications

(75 citation statements)

References 91 publications

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“…Initial results obtained by NICER [41][42][43] for PSR J0030 þ 0451 [44,45] complement the tidal measurements from GW170817 [46][47][48], as they constrain the EoS at 1-2ρ nuc [49], disfavoring the softest EoSs [50]. This ensemble of theory, experiment and observation has helped to establish an overall picture of NS matter in the last few years [50][51][52][53][54], which is nonetheless still unresolved at high densities.…”

Section: Introductionmentioning

confidence: 59%

Impact of the PSR J0740+6620 radius constraint on the properties of high-density matter

et al. 2021

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X-ray pulse profile modeling of PSR J0740 þ 6620, the most massive known pulsar, with data from the NICER and XMM-Newton observatories recently led to a measurement of its radius. We investigate this measurement's implications for the neutron star equation of state (EoS), employing a nonparametric EoS model based on Gaussian processes and combining information from other x-ray, radio and gravitationalwave observations of neutron stars. Our analysis mildly disfavors EoSs that support a disconnected hybrid star branch in the mass-radius relation, a proxy for strong phase transitions, with a Bayes factor of 6.9. For such EoSs, the transition mass from the hadronic to the hybrid branch is constrained to lie outside ð1; 2Þ M ⊙ . We also find that the conformal sound-speed bound is violated inside neutron star cores, which implies that the core matter is strongly interacting. The squared sound speed reaches a maximum of 0.75 þ0.25 −0.24 c 2 at 3.60 þ2.25 −1.89 times nuclear saturation density at 90% credibility. Since all but the gravitational-wave observations prefer a relatively stiff EoS, PSR J0740 þ 6620's central density is only 3.57 þ1.3 −1.3 times nuclear saturation, limiting the density range probed by observations of cold, nonrotating neutron stars in β-equilibrium.

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Section: Introductionmentioning

confidence: 59%

Impact of the PSR J0740+6620 radius constraint on the properties of high-density matter

et al. 2021

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“…With the exception of the most massive galaxies, the primary mode of galaxy growth is via the star formation process (van Dokkum et al 2013;Wilman et al 2020), that converts gas into new stellar populations. This process is tightly related to the balance of gas E-mail: matteo.fossati@unimib.it accretion into the interstellar medium (ISM) and outflows (Bouché et al 2010;Lilly et al 2013;Sharma & Theuns 2020).…”

Section: Introductionmentioning

confidence: 99%

MUSE analysis of gas around galaxies (MAGG) – III. The gas and galaxy environment of z = 3–4.5 quasars

Fossati

Fumagalli

Lofthouse

et al. 2021

Monthly Notices of the Royal Astronomical Society

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We present a study of the environment of 27 z = 3 − 4.5 bright quasars from the MUSE Analysis of Gas around Galaxies (MAGG) survey. With medium-depth MUSE observations (4 hours on target per field), we characterise the effects of quasars on their surroundings by studying simultaneously the properties of extended gas nebulae and Lyα emitters (LAEs) in the quasar host haloes. We detect extended (up to ≈100 kpc) Lyα emission around all MAGG quasars, finding a very weak redshift evolution between z = 3 and z = 6. By stacking the MUSE datacubes, we confidently detect extended emission of C iv and only marginally detect extended He ii up to ≈40 kpc, implying that the gas is metal enriched. Moreover, our observations show a significant overdensity of LAEs within 300 $\rm km~s^{-1}$ from the quasar systemic redshifts estimated from the nebular emission. The luminosity functions and equivalent width distributions of these LAEs show similar shapes with respect to LAEs away from quasars suggesting that the Lyα emission of the majority of these sources is not significantly boosted by the quasar radiation or other processes related to the quasar environment. Within this framework, the observed LAE overdensities and our kinematic measurements imply that bright quasars at z = 3 − 4.5 are hosted by haloes in the mass range $\approx 10^{12.0}-10^{12.5}~\rm M_\odot$.

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“…with the highest number of good fit neighbouring spaxels) regions in the map. This method, leading to the smooth velocity map in the aperture (shown in the bottom-right panel of the figure), assumes that the velocity curves we are considering are smooth (see Wilman et al 2020), which is not a strong assumption for discy star-forming galaxies. We then produced a total restframe 1D spectrum in the aperture by summing all the spaxels corrected for their relative velocity, as shown in Fig.…”

Section: Hα Fluxesmentioning

confidence: 99%

Euclidpreparation

Guglielmo¹,

Saglia²,

Castander³

et al. 2020

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The Complete Calibration of the Colour–Redshift Relation survey (C3R2) is a spectroscopic effort involving ESO and Keck facilities designed specifically to empirically calibrate the galaxy colour–redshift relation – P(z|C) to the Euclid depth (iAB = 24.5) and is intimately linked to the success of upcoming Stage IV dark energy missions based on weak lensing cosmology. The aim is to build a spectroscopic calibration sample that is as representative as possible of the galaxies of the Euclid weak lensing sample. In order to minimise the number of spectroscopic observations necessary to fill the gaps in current knowledge of the P(z|C), self-organising map (SOM) representations of the galaxy colour space have been constructed. Here we present the first results of an ESO@VLT Large Programme approved in the context of C3R2, which makes use of the two VLT optical and near-infrared multi-object spectrographs, FORS2 and KMOS. This data release paper focuses on high-quality spectroscopic redshifts of high-redshift galaxies observed with the KMOS spectrograph in the near-infrared H- and K-bands. A total of 424 highly-reliable redshifts are measured in the 1.3 ≤ z ≤ 2.5 range, with total success rates of 60.7% in the H-band and 32.8% in the K-band. The newly determined redshifts fill 55% of high (mainly regions with no spectroscopic measurements) and 35% of lower (regions with low-resolution/low-quality spectroscopic measurements) priority empty SOM grid cells. We measured Hα fluxes in a 1.″2 radius aperture from the spectra of the spectroscopically confirmed galaxies and converted them into star formation rates. In addition, we performed an SED fitting analysis on the same sample in order to derive stellar masses, E(B − V), total magnitudes, and SFRs. We combine the results obtained from the spectra with those derived via SED fitting, and we show that the spectroscopic failures come from either weakly star-forming galaxies (at z < 1.7, i.e. in the H-band) or low S/N spectra (in the K-band) of z > 2 galaxies.

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The Regulation of Galaxy Growth along the Size–Mass Relation by Star Formation, as Traced by Hα in KMOS^3D Galaxies at 0.7 ≲ z ≲ 2.7*

Cited by 67 publications

References 91 publications

Impact of the PSR J0740+6620 radius constraint on the properties of high-density matter

Impact of the PSR J0740+6620 radius constraint on the properties of high-density matter

MUSE analysis of gas around galaxies (MAGG) – III. The gas and galaxy environment of z = 3–4.5 quasars

Euclidpreparation

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The Regulation of Galaxy Growth along the Size–Mass Relation by Star Formation, as Traced by Hα in KMOS3D Galaxies at 0.7 ≲ z ≲ 2.7*

Cited by 67 publications

References 91 publications

Impact of the PSR J0740+6620 radius constraint on the properties of high-density matter

Impact of the PSR J0740+6620 radius constraint on the properties of high-density matter

MUSE analysis of gas around galaxies (MAGG) – III. The gas and galaxy environment of z = 3–4.5 quasars

Euclidpreparation

Contact Info

Product

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The Regulation of Galaxy Growth along the Size–Mass Relation by Star Formation, as Traced by Hα in KMOS^3D Galaxies at 0.7 ≲ z ≲ 2.7*