Asset Details

MbrlCatalogueTitleDetail

Do you wish to reserve the book?

Early Results from GLASS-JWST. XIV. A Spectroscopically Confirmed Protocluster 650 Million Years after the Big Bang

by Glazebrook, Karl , Wang, Xin , Filippenko, Alexei V , Leethochawalit, Nicha , Lu, Ting-Yi , Vulcani, Benedetta , Bahé, Yannick , Boyett, Kristan , Chen, Wenlei , Nonino, Mario , Grillo, Claudio , Brammer, Gabriel , Bradac, Marusa , Mascia, Sara , Mercurio, Amata , Calabrò, Antonello , Roberts-Borsani, Guido , Henry, Alaina , Jones, Tucker , Treu, Tommaso , Koekemoer, Anton M , Fontana, Adriano , Merlin, Emiliano , Vanzella, Eros , Marchesini, Danilo , Windhorst, Rogier A , Xie, Lizhi , Metha, Benjamin , Castellano, Marco , Kelly, Patrick L , Rosati, Piero , Santini, Paola , De Lucia, Gabriella , Strait, Victoria , Acebron, Ana , Bergamini, Pietro , Mason, Charlotte A , Morishita, Takahiro , Trenti, Michele , Pentericci, Laura , Paris, Diego , Nanayakkara, Themiya

in Emission / Galactic clusters / Galactic evolution / Galactic halos / Galaxies / Intergalactic media / Ionization / Line of sight / Red shift / Spectroscopy / Star & galaxy formation / Stars & galaxies

2023

Yes Please

Hey, we have placed the reservation for you!

By the way, why not check out events that you can attend while you pick your title.

Oops! Something went wrong.

Looks like we were not able to place the reservation. Kindly try again later.

Are you sure you want to remove the book from the shelf?

Early Results from GLASS-JWST. XIV. A Spectroscopically Confirmed Protocluster 650 Million Years after the Big Bang

2023

Confirm

Do you wish to request the book?

Early Results from GLASS-JWST. XIV. A Spectroscopically Confirmed Protocluster 650 Million Years after the Big Bang

2023

Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy

How would you like to get it?

Submit

We have requested the book for you!

Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.

Oops! Something went wrong.

Looks like we were not able to place your request. Kindly try again later.

Journal Article

Early Results from GLASS-JWST. XIV. A Spectroscopically Confirmed Protocluster 650 Million Years after the Big Bang

Glazebrook, Karl,

Wang, Xin,

Filippenko, Alexei V,

Leethochawalit, Nicha,

Lu, Ting-Yi,

Vulcani, Benedetta,

Bahé, Yannick,

Boyett, Kristan,

Chen, Wenlei,

Nonino, Mario,

Grillo, Claudio,

Brammer, Gabriel,

Bradac, Marusa,

Mascia, Sara,

Mercurio, Amata,

Calabrò, Antonello,

Roberts-Borsani, Guido,

Henry, Alaina,

Jones, Tucker,

Treu, Tommaso,

Koekemoer, Anton M,

Fontana, Adriano,

Merlin, Emiliano,

Vanzella, Eros,

Marchesini, Danilo,

Windhorst, Rogier A,

Xie, Lizhi,

Metha, Benjamin,

Castellano, Marco,

Kelly, Patrick L,

Rosati, Piero,

Santini, Paola,

De Lucia, Gabriella,

Strait, Victoria,

Acebron, Ana,

Bergamini, Pietro,

Mason, Charlotte A,

Morishita, Takahiro,

Trenti, Michele,

Pentericci, Laura,

Paris, Diego,

Nanayakkara, Themiya

2023

Overview

We present the spectroscopic confirmation of a protocluster at z = 7.88 behind the galaxy cluster Abell 2744 (hereafter A2744-z7p9OD). Using JWST NIRSpec, we find seven galaxies within a projected radius of 60 kpc. Although the galaxies reside in an overdensity around ≳20× greater than a random volume, they do not show strong Lyα emission. We place 2σ upper limits on the rest-frame equivalent width <16–28 Å. Based on the tight upper limits to the Lyα emission, we constrain the volume-averaged neutral fraction of hydrogen in the intergalactic medium to be x HI > 0.45 (68% C i). Using an empirical M UV–M halo relation for individual galaxies, we estimate that the total halo mass of the system is ≳4 × 1011 M ⊙. Likewise, the line-of-sight velocity dispersion is estimated to be 1100 ± 200 km s−1. Using an empirical relation, we estimate the present-day halo mass of A2744-z7p9OD to be ∼2 × 1015 M ⊙, comparable to the Coma cluster. A2744-z7p9OD is the highest redshift spectroscopically confirmed protocluster to date, demonstrating the power of JWST to investigate the connection between dark-matter halo assembly and galaxy formation at very early times with medium-deep observations at <20 hr total exposure time. Follow-up spectroscopy of the remaining photometric candidates of the overdensity will further refine the features of this system and help characterize the role of such overdensities in cosmic reionization.

Share this book

Add to My Shelf

Publisher

IOP Publishing

Subject

/ Intergalactic media

/ Ionization