An H<i>α</i> kinematic survey of the <i>Herschel</i> Reference Survey

Gómez-López, J. A.; Amram, P.; Épinat, B.; Boselli, A.; Rosado, M.; Marcelin, M.; Boissier, S.; Gach, Jean-Luc; Sánchez-Cruces, M.; Sardaneta, M. M.

doi:10.1051/0004-6361/201935869

Cited by 16 publications

(20 citation statements)

References 132 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fabry-Perot 3D spectroscopic observations of the galaxy IC 3476 were gathered using the GHASP instrument on the 1.93 m Observatoire de Haute Provence (OHP) telescope in May 2017 during the complete Fabry-Perot survey of the Herschel Reference Survey (Gómez-López et al 2019). The GHASP focal reducer has a Fabry-Perot with a field of view of 5.8 × 5.8 arcmin 2 coupled with a 512 × 512 Imaging Photon Counting System (IPCS) with a pixel scale of 0.68 × 0.68 arcsec 2 (Gach et al 2002).…”

Section: Fabry-perot Spectroscopymentioning

confidence: 99%

“…The galaxy was observed through an interference filter of 15 Å using the NeI emission line at 6598.95 Å for wavelength calibrations. The data were reduced as described in Epinat et al (2008) and Gómez-López et al (2019). To provide the best combination of angular resolution and signal-to-noise at each position, we applied an adaptive binning technique based on a 2D Voronoi tassellation on the Hα data cube producing radial velocity and velocity dispersion maps.…”

Section: Fabry-perot Spectroscopymentioning

confidence: 99%

See 1 more Smart Citation

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE)

Boselli

Lupi

Épinat

et al. 2021

A&A

Self Cite

View full text Add to dashboard Cite

We study the IB(s)m galaxy IC 3476 observed in the context of the Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE), a blind narrow-band Hα+[NII] imaging survey of the Virgo cluster carried out with MegaCam at the CFHT. The deep narrow-band image reveals a very pertubed ionised gas distribution that is characterised by a prominent banana-shaped structure in the front of the galaxy formed of giant HII regions crossing the stellar disc. Star-forming structures, at ∼8 kpc from the edges of the stellar disc, are also detected in a deep far-ultraviolet ASTROSAT/UVIT image. This particular morphology indicates that the galaxy is undergoing an almost edge-on ram pressure stripping event. The same Hα+[NII] image also shows that the star formation activity is totally quenched in the leading edge of the disc, where the gas has been removed during the interaction with the surrounding medium. The spectral energy distribution fitting analysis of the multi-frequency data indicates that this quenching episode is very recent (∼50 Myr), and roughly corresponds to an increase of the star formation activity by a factor of ∼161% in the inner regions with respect to that expected for secular evolution. The analysis of these data, whose angular resolution enables the study of the induced effects of the perturbation down to the scale of individual HII regions (req ≃ 40 pc), also suggests that the increase of star formation activity is due to the compression of the gas along the stellar disc of the galaxy, which is able to increase its mean electron density and boost the star formation process producing bright HII regions with luminosities up to L(Hα) ≃ 1038 erg s−1. The combined analysis of the VESTIGE data with deep IFU spectroscopy gathered with MUSE and with high spectral resolution Fabry Perot data also indicates that the hydrodynamic interaction has deeply perturbed the velocity field of the ionised gas component while leaving that of the stellar disc unaffected. The comparison of the data with tuned high-resolution hydrodynamic simulations accounting for the different gas phases (atomic, molecular, ionised) consistently indicates that the perturbing event is very recent (50–150 Myr), once again confirming that ram pressure stripping is a violent phenomenon that is able to perturb the evolution of galaxies in rich environments on short timescales.

show abstract

Section: Fabry-perot Spectroscopymentioning

confidence: 99%

Section: Fabry-perot Spectroscopymentioning

confidence: 99%

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE)

Boselli

Lupi

Épinat

et al. 2021

A&A

Self Cite

View full text Add to dashboard Cite

show abstract

“…Significant efforts to solve this question have been made by studying how the TFR evolves with cosmic time using various samples of star-forming galaxies, but the evolution of this relation with redshift is still a matter of debate. In the local Universe, many studies of the TFR have been performed on spiral galaxies (e.g., Bell & de Jong 2001;Masters et al 2006;Pizagno et al 2007;Sorce et al 2014;Gómez-López et al 2019). However, one difficulty in comparing these studies comes from the heterogeneous datasets (H i or ionized gas spectroscopy, magnitudes in diverse spectral bands) and methods (integral field and long-slit spectroscopy data, H i widths, or velocity maps).…”

Section: Introductionmentioning

confidence: 99%

The Tully-Fisher relation in dense groups at z ∼ 0.7 in the MAGIC survey

Abril-Melgarejo

Épinat

Mercier

et al. 2021

A&A

View full text Add to dashboard Cite

Context. Galaxies in dense environments are subject to interactions and mechanisms that directly affect their evolution by lowering their gas fractions and consequently reducing their star-forming capacity earlier than their isolated counterparts. Aims. The aim of our project is to get new insights into the role of environment in the stellar and baryonic content of galaxies using a kinematic approach, through the study of the Tully-Fisher relation (TFR). Methods. We study a sample of galaxies in eight groups, over-dense by a factor larger than 25 with respect to the average projected density, spanning a redshift range of 0.5 < z < 0.8 and located in ten pointings of the MAGIC MUSE Guaranteed Time Observations program. We perform a morpho-kinematics analysis of this sample and set up a selection based on galaxy size, [O II]λλ3727,3729 emission line doublet signal-to-noise ratio, bulge-to-disk ratio, and nuclear activity to construct a robust kinematic sample of 67 star-forming galaxies. Results. We show that this selection considerably reduces the number of outliers in the TFR, which are predominantly dispersion-dominated galaxies. Similar to other studies, we find that including the velocity dispersion in the velocity budget mainly affects galaxies with low rotation velocities, reduces the scatter in the relation, increases its slope, and decreases its zero-point. Including gas masses is more significant for low-mass galaxies due to a larger gas fraction, and thus decreases the slope and increases the zero-point of the relation. Our results suggest a significant offset of the TFR zero-point between galaxies in low- and high-density environments, regardless of the kinematics estimator used. This can be interpreted as a decrease in either stellar mass by ∼0.05 − 0.3 dex or an increase in rotation velocity by ∼0.02 − 0.06 dex for galaxies in groups, depending on the samples used for comparison. We also studied the stellar and baryon mass fractions within stellar disks and found they both increase with stellar mass, the trend being more pronounced for the stellar component alone. These fractions do not exceed 50%. We show that this evolution of the TFR is consistent either with a decrease in star formation or with a contraction of the mass distribution due to the environment. These two effects probably act together, with their relative contribution depending on the mass regime.

show abstract

“…The past century has seen a massive broadening of scope in the study of galaxy kinematics. Early works focused on spectral line emission from single nearby galaxies (e.g., Pease 1918;Burbidge et al 1959), while current studies are able to probe the kinematics of many local objects (e.g., Garrido et al 2002;Conselice et al 2005;de Blok et al 2008;Shapiro et al 2008;Puech 2010;Gómez-López et al 2019;Korsaga et al 2019;den Brok et al 2020) or single objects in much greater detail (e.g., Carignan et al 2006;Chemin et al 2009;Cramer et al 2019;North et al 2019;Braine et al 2020). This detailed analysis has also been extended to galaxies at intermediate redshift (i.e., ∼ 1 − 3; t H ∼ 6 − 2 Gyr) with integral field spectroscopy, mostly in the rest-frame optical and near-infrared (e.g., Förster Schreiber et al 2006;Epinat et al 2012;Burkert et al 2016;Turner et al 2017;Harrison et al 2017;Molina et al 2017;Swinbank et al 2017;Wisnioski et al 2019;Loiacono et al 2019).…”

Section: Introductionmentioning

confidence: 99%

The ALPINE-ALMA [C ii] Survey: kinematic diversity and rotation in massive star-forming galaxies at z ~ 4.4–5.9

Jones

Vergani

Romano

et al. 2021

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

While the kinematics of galaxies up to z ∼ 3 have been characterized in detail, only a handful of galaxies at high redshift (z > 4) have been examined in such a way. The Atacama Large Millimeter/submillimeter Array (ALMA) Large Program to INvestigate [CII] at Early times (ALPINE) survey observed a statistically significant sample of 118 star-forming main sequence galaxies at z = 4.4 − 5.9 in [CII]158μm emission, increasing the number of such observations by nearly 10x. A preliminary qualitative classification of these sources revealed a diversity of kinematic types (i.e., rotators, mergers, and dispersion-dominated systems). In this work, we supplement the initial classification by applying quantitative analyses to the ALPINE data: a tilted ring model (TRM) fitting code (3DBarolo), a morphological classification (Gini-M20), and a set of disk identification criteria. Of the 75 [CII]-detected ALPINE galaxies, 29 are detected at sufficient significance and spatial resolution to allow for TRM fitting and the derivation of morphological and kinematic parameters. These 29 sources constitute a high-mass subset of the ALPINE sample (M* > 109.5 M⊙). We robustly classify 14 of these sources (six rotators, five mergers, and three dispersion-dominated systems); the remaining sources showing complex behaviour. By exploring the G-M20 of z > 4 rest-frame FIR and [CII] data for the first time, we find that our 1″ ∼ 6 kpc resolution data alone are insufficient to separate galaxy types. We compare the rotation curves and dynamical mass profiles of the six ALPINE rotators to the two previously detected z ∼ 4 − 6 unlensed main sequence rotators, finding high rotational velocities (∼50 − 250 km s−1) and a diversity of rotation curve shapes.

show abstract

An Hα kinematic survey of the Herschel Reference Survey

Cited by 16 publications

References 132 publications

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE)

A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE)

The Tully-Fisher relation in dense groups at z ∼ 0.7 in the MAGIC survey

The ALPINE-ALMA [C ii] Survey: kinematic diversity and rotation in massive star-forming galaxies at z ~ 4.4–5.9

Contact Info

Product

Resources

About