2020ApJ...889L..12D

Query : 2020ApJ...889L..12D

2020ApJ...889L..12D - Astrophys. J., 889, L12-L12 (2020/January-3)

Deep Hubble Space Telescope imaging on the extended Lyα emission of a QSO at z=2.19 with a damped Lyman alpha system as a natural coronagraph.

DING J., CAI Z., PROCHASKA J.X., FINLEY H., FAN X., ZHENG Z., FATHIVAVSARI H. and PETITJEAN P.

Abstract (from CDS):

Recent observations suggest that proximate damped Lyα (PDLA) systems can be used to study the host galaxies of quasi-stellar objects (QSOs), because the PDLAs can block the bright point-spread function from central QSOs. Using six orbits of narrowband imaging with Hubble Space Telescope (HST)/WFC3, we present the first high-resolution narrowband image of the Lyα emission in the PDLA trough of the QSO SDSS J115432.67-021537.9. We detect one major component and one minor component in the narrowband imaging. Combining the HST/WFC3 imaging with deep Magellan/MagE spectra, we measure that the Lyα flux F_Lyα = 1.56±0.10×10^–16ergs^–1cm^–2, which is among the luminous (≃2.7 L_Lyα^*^) Lyα emitters at z= 2.19. The Lyα-based star formation rate is ∼7 M_☉yr^–1. These observational results favor that the star formation from the host galaxy could be the main mechanism powering the Lyα emission. This new method sheds light on the study of the kinematic structure and the spatial distribution of the extended Lyα emitting regions around the QSO host.

Journal keyword(s): Quasars - Quasar absorption line spectroscopy - HST photometry

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	SDSS J115432.67-021538.0	QSO	11 54 32.676	-02 15 37.99						~	10	0

Query : 2020ApJ...889L..12D

Basic data :

SDSS J115432.67-021538.0 -- Quasar

QSO (2013A&A), Opt (SDSS)

11 54 32.676 -02 15 37.99 (Optical) [ 44 40 90 ] C 2012ApJS..203...21A

11 51 58.995 -01 58 56.19 [ 44 40 90 ]

275.685721 +57.570156 [ 44 40 90 ]

V(km/s) 245836 [~] / z(spectroscopic) 2.180000 [~] / cz 653547.56 [~] (Opt) D 2018A&A...613A..51P

u (AB) 22.3235 [0.1913] D 2020ApJS..250....8L

g (AB) 21.5733 [0.0478] C 2020ApJS..250....8L

r (AB) 21.3859 [0.0631] C 2020ApJS..250....8L

i (AB) 21.0922 [0.0687] C 2020ApJS..250....8L

z (AB) 20.8176 [0.2300] D 2020ApJS..250....8L

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

SDSS J115432.67-021538.0 SDSS J115432.67-021537.9

References (10 between 1850 and 2026) (Total 10)
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 :

Data at NED - NASA/IPAC Extragalactic Database : SDSS J115432.67-021538.0

Link by name to the catalogue in VizieR :

SDSS J115432.67-021538.0 SDSS J115432.67-021537.9

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 2020ApJ...889L..12D and select 'bookmark this link' or equivalent in the popup menu