2026AJ....171...65S

Query : 2026AJ....171...65S

2026AJ....171...65S - Astron. J., 171, 65 (2026/February-0)

On-sky Demonstration of Second-stage Wave-front Control with a Photonic Lantern.

SENGUPTA A.R., DIAZ J., DEMARTINO M., JENSEN-CLEM R., CETRE S., GATES E., BUNDY K., DILLON D., HINZ P., SALAMA M., SKAF N., GUYON O., CROWE T., DOBIAS C., EIKENBERRY S.S., AMEZCUA-CORREA R. and YEROLATSITIS S.

Abstract (from CDS):

Ground-based direct imaging of exoplanets at high contrast requires precise correction of atmospheric turbulence using adaptive optics (AO). The planet-to-star contrast ratio at small angular separations from the host star is often limited by non-common-path aberrations (NCPAs) that are seen only in the science plane. The photonic lantern (PL) can be used to sense aberrations at the final science imaging plane. This enables a two-stage wave-front control architecture, in which the first-stage wave-front sensor senses atmospheric turbulence and the PL senses NCPAs and other aberrations not seen by the first stage. We demonstrate closed-loop control of residual wave-front errors using a nondispersed PL after first-stage AO correction on the Shane 3 m telescope at Lick Observatory. Our results show that nondispersed PLs can be used for second-stage wave-front sensing, enabling performance improvements via minimally invasive retrofits to existing AO systems.

Abstract Copyright: © 2026. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Adaptive optics - Astronomical instrumentation

Simbad objects: 1

goto Full paper

goto 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 * gam Dra * 17 56 36.36988 +51 29 20.0242 5.630 3.760 2.230 1.08 0.23 K5III 581 1

Query : 2026AJ....171...65S

Basic data :
* gam Dra -- Star
Other object types: otypes_help 		* (*,AG,...), ** (ADS,CCDM,...), IR (IRAS,IRC,...), UV (TD1), NIR (2MASS)
ICRS coord. (ep=J2000) : 		17 56 36.36988 +51 29 20.0242 (Optical) [ 0.97 0.88 90 ] A 2007A&A...474..653V
FK4 coord. (ep=B1950 eq=1950) : 		17 55 26.58320 +51 29 38.4896 [ 0.97 0.88 90 ]
Gal coord. (ep=J2000) : 		079.05496371 +29.21733609 [ 0.97 0.88 90 ]
Proper motions mas/yr : 		-8.48 -22.79 [0.11 0.10 0] A 2007A&A...474..653V
Radial velocity / Redshift / cz : 		V(km/s) -27.91 [0.19] / z(~) -0.000093 [0.000001] / cz -27.91 [0.19]
   A 2005A&A...430..165F
Parallaxes (mas): 		21.14 [0.10] A 2007A&A...474..653V
Spectral type: 		K5III B 1989ApJS...71..245K
Fluxes (8) :
U 5.630 [0.010] C 1984A&AS...57..357O
B 3.760 [0.007] C 1993A&AS..100..591O
V 2.230 [0.009] C 1993A&AS..100..591O
R 1.08 [~] C 2002yCat.2237....0D
I 0.23 [~] C 2002yCat.2237....0D
J -0.44 [~] C 2002yCat.2237....0D
H -1.034 [0.180] D 2003yCat.2246....0C
K -1.35 [~] C 2002yCat.2237....0D
SIMBAD within arcmin
Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within arcsec sed-help-icon
notes:

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 		Display criteria :

Identifiers (38) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* gam Dra GEN# +1.00164058 NAME Eltanin TIC 329269366
* 33 Dra HD 164058 PLX 4107 TYC 3523-1684-1
ADS 10923 A HIC 87833 PLX 4107.00 UBV 15288
AG+51 1174 HIP 87833 PMC 90-93 482 UBV M 22521
BD+51 2282 HR 6705 PPM 36267 USNO 875
CCDM J17566+5129A IRAS 17554+5129 RAFGL 2039 uvby98 100164058
CSI+51 2282 1 IRC +50274 ROT 2516 WDS J17566+5129A
FK5 676 JP11 2911 SAO 30653 WEB 14827
GC 24432 2MASS J17563637+5129197 SKY# 32519
GCRV 10394 N30 3992 TD1 21351

References (581 between 1850 and 2026) (Total 581)
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
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements Description of Measurements

Velocities : 9    Rot : 7    Fe/H : 27    Plx : 3    PM : 5    SpT : 21   

   

Observing logs
ISO : 704    IUE : 12   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : * gam Dra

Link by name to the catalogue in VizieR :

AG+51 1174 BD+51 2282 CCDM J17566+5129A FK5 676 HD 164058
HIC 87833 HIP 87833 HR 6705 IRAS 17554+5129 IRC +50274
2MASS J17563637+5129197 PLX 4107 PPM 36267 RAFGL 2039 SAO 30653
TD1 21351 TYC 3523-1684-1 uvby98 100164058 WDS J17566+5129A

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 2026AJ....171...65S and select 'bookmark this link' or equivalent in the popup menu