2016ApJ...827L..14T

Query : 2016ApJ...827L..14T

2016ApJ...827L..14T - Astrophys. J., 827, L14-L14 (2016/August-2)

First results from the Faint Infrared Grism Survey (FIGS): first simultaneous detection of Lyα emission and Lyman break from a galaxy at z = 7.51.

TILVI V., PIRZKAL N., MALHOTRA S., FINKELSTEIN S.L., RHOADS J.E., WINDHORST R., GROGIN N.A., KOEKEMOER A., ZAKAMSKA N.L., RYAN R., CHRISTENSEN L., HATHI N., PHARO J., JOSHI B., YANG H., GRONWALL C., CIMATTI A., WALSH J., O'CONNELL R., STRAUGHN A., OSTLIN G., ROTHBERG B., LIVERMORE R.C., HIBON P. and GARDNER J.P.

Abstract (from CDS):

Galaxies at high redshifts are a valuable tool for studying cosmic dawn, therefore it is crucial to reliably identify these galaxies. Here, we present an unambiguous and first simultaneous detection of both the Lyα emission and the Lyman break from a z=7.512 ± 0.004 galaxy, observed in the Faint Infrared Grism Survey (FIGS). These spectra, taken with the G102 grism on the Hubble Space Telescope (HST), show a significant emission line detection (6σ) in two observational position angles (PAs), with Lyα line flux of 1.06±0.19×{10}^{{–17} erg {s}}{-1} cm^{-2}. The line flux is nearly a factor of four higher than that in the archival MOSFIRE spectroscopic observations. This is consistent with other recent observations, implying that ground-based near-infrared spectroscopy underestimates the total emission line fluxes, and if confirmed, can have strong implications for reionization studies that are based on ground-based Lyα measurements. A 4σ detection of the NV line in one PA also suggests a weak active galactic nucleus (AGN), and if confirmed, would make this source the highest-redshift AGN yet found. These observations from HST thus clearly demonstrate the sensitivity of the FIGS survey, and the capability of grism spectroscopy for studying the epoch of reionization.

Journal keyword(s): dark ages, reionization, first stars - early universe - galaxies: high-redshift - intergalactic medium - intergalactic medium

Simbad objects: 1

Full paper

View the references in ADS

Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	FIGS GN1 1292	EmG	12 36 37.892	+62 18 08.54						~	34	0

Query : 2016ApJ...827L..14T

Basic data :

FIGS GN1 1292 -- Emission-line galaxy

G (2013Natur,FIGS,...), EmG (2020ApJ)

12 36 37.892 +62 18 08.54 (Optical) [ ] C 2015ApJ...814...95F

12 34 23.893 +62 34 38.47 [ ]

125.911559 +54.740137 [ ]

V(km/s) 291618 [210] / z(emission) 7.5056 [0.0007] / cz 2250122 [210] (Opt) C 2020ApJ...904..144J

J 25.66 [~] D 2021MNRAS.500.5229E

Overlay

points in this preview

2MASS DSS

All

(CDSPortal)

Send to

An access of full data is available using the icon Vizier near the identifier of the catalogue

`FIGS GN1 1292`	`[ESC2021] GN-63408`	`[FRP2015] z7 GND 42912`
`HRG14 J123637.89+621808.5`	`[FPD2013] z8 GND 5296`

References (34 between 1850 and 2026) (Total 34)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

Follow new references on this object

Collections of Measurements

External archives :

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 2016ApJ...827L..14T and select 'bookmark this link' or equivalent in the popup menu