P. Merluzzi

Caught in the web: Galaxy mergers along cosmic filaments

Carolina Dulcien, Yara L. Jaffé, Jacob P. Crossett, Raúl Baier-Soto et autres

Context. Galaxy clusters grow through the accretion of galaxies from groups, filaments, and other clusters. During this process, galaxies may undergo pre-processing in lower density environments, where galaxy–galaxy mergers and other interactions can significantly alter their properties prior to cluster infall. Aims. …

Caught in the web: Galaxy mergers along cosmic filaments

Carolina Dulcien, Yara L. Jaffé, Jacob P. Crossett, Raúl Baier-Soto et autres

Context. Galaxy clusters grow through the accretion of galaxies from groups, filaments, and other clusters. During this process, galaxies may undergo pre-processing in lower density environments, where galaxy–galaxy mergers and other interactions can significantly alter their properties prior to cluster infall. Aims. …

cl, fr, us, es, br, gb, ru, fi, it, cu, de (code pays fourni par la source)

Caught in the web: galaxy mergers along cosmic filaments

Carolina Dulcien, Yara Jaffe, Jacob P. Crossett, Raúl Baier-Soto et autres

Galaxy clusters grow through the accretion of galaxies from groups, filaments, and other clusters. During this process, galaxies may undergo pre-processing in lower-density environments, where galaxy-galaxy mergers and other interactions can significantly alter their properties prior to cluster infall. We investigate the …

Targeting cluster galaxies for the 4MOST CHANCES Low- z sub-survey with photometric redshifts

Hugo Méndez-Hernàndez, Círia Lima-Dias, Antonela Monachesi, Yara L. Jaffé et autres

Context. The evolution of galaxies is shaped by both internal processes and their external environments. Galaxy clusters and their surroundings provide ideal laboratories to study these effects, particularly with respect to mechanisms such as quenching and morphological transformation. The Chilean Cluster galaxy …

cl, fr, us, br, cu, gb, ru, fi, ar, it, es, pl, cn, Mozambique (code pays fourni par la source)

The role of supercluster filaments in shaping galaxy clusters

Raúl Baier-Soto, Yara L. Jaffé, A. Finoguenov, Paul Haines et autres

Context. In a hierarchical ΛCDM Universe, cosmic filaments serve as the primary channels for matter accretion into galaxy clusters, influencing the shape of their dark matter halos. Aims. We investigate whether the elongation of galaxy clusters correlates with the orientation of surrounding …

cl, fr, us, fi, it, gb, es, br, de, ar, cu, au, ru, rs, pl (code pays fourni par la source)

Targeting cluster galaxies for the 4MOST CHANCES Low-z sub-survey with photometric redshifts

Hugo Méndez-Hernàndez, Círia Lima-Dias, Antonela Monachesi, Yara L. Jaffé et autres

The evolution of galaxies is shaped by both internal processes and their external environments. Galaxy clusters and their surroundings provide ideal laboratories to study these effects, particularly mechanisms such as quenching and morphological transformation. The Chilean Cluster galaxy Evolution Survey (CHANCES) Low-z …

The peculiar mini-halo in the Shapley Supercluster member Abell 3558

K S Trehaeven, T. Venturi, Oleg M. Smirnov, G. Di Gennaro et autres

ABSTRACT We present a multiband study of the diffuse emission in the galaxy cluster A3558, located in the core of the Shapley Supercluster. Using new MeerKAT (Meer Karoo Array Telescope) ultra-high-frequency (UHF) Band and uGMRT (Upgraded Giant Metrewave Radio Telescope) Band-3 observations, …

Afrique du Sud, it, us, in (code pays fourni par la source)

CHANCES, the Chilean Cluster Galaxy Evolution Survey: Selection and initial characterisation of clusters and superclusters

Cristobál Sifón, A. Finoguenov, Yara L. Jaffé, B. M. Amrutha et autres

CHANCES, the CHileAN Cluster galaxy Evolution Survey, will study the evolution of galaxies in and around 100 massive galaxy clusters from the local Universe out to $z = 0.45$, and two superclusters at $z \sim 0.05$ that contain roughly 25 Abell clusters …

Ram-pressure stripped radio tails detected in the dynamically active environment of the Shapley Supercluster

P. Merluzzi, T. Venturi, Giovanni Busarello, G. Di Gennaro et autres

ABSTRACT We study the radio continuum emission of four galaxies experiencing ram-pressure stripping in four clusters of the Shapley Supercluster at redshift $z\sim 0.05$. Multiband (235–1367 MHz) radio data, complemented by integral-field spectroscopy, allow us to detect and analyse in detail the …

it, Afrique du Sud, de, us, au (code pays fourni par la source)

Ram-pressure stripped radio tails detected in the dynamically active environment of the Shapley Supercluster

P. Merluzzi, T. Venturi, Giovanni Busarello, G. Di Gennaro et autres

We study the radio continuum emission of four galaxies experiencing ram-pressure stripping in four clusters of the Shapley supercluster at redshift z~0.05. Multi-band (235-1367 MHz) radio data, complemented by integral-field spectroscopy, allow us to detect and analyse in detail the non-thermal component …

The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation

Shoko Jin, Scott C. Trager, Gavin Dalton, J. A. L. Aguerri et autres

ABSTRACT WEAVE, the new wide-field, massively multiplexed spectroscopic survey facility for the William Herschel Telescope, saw first light in late 2022. WEAVE comprises a new 2-deg field-of-view prime-focus corrector system, a nearly 1000-multiplex fibre positioner, 20 individually deployable ‘mini’ integral field units …

nl, gb, es, fr, it, se, mx, us, de, be, au (code pays fourni par la source)

WEAVE-StePS: A stellar population survey using WEAVE at WHT

Angela Iovino, Bianca Maria Poggianti, Amata Mercurio, M. Longhetti et autres

Context.The upcoming new generation of optical spectrographs on four-meter-class telescopes will provide valuable opportunities for forthcoming galaxy surveys through their huge multiplexing capabilities, excellent spectral resolution, and unprecedented wavelength coverage. Aims.WEAVE is a new wide-field spectroscopic facility mounted on the 4.2 mWilliam …