2002A&A...387L..21T

Query : 2002A&A...387L..21T

2002A&A...387L..21T - Astronomy and Astrophysics, volume 387, L21-24 (2002/5-4)

Diffraction-limited CCD imaging with faint reference stars.

TUBBS R.N., BALDWIN J.E., MacKAY C.D. and COX G.C.

Abstract (from CDS):

By selecting short exposure images taken using a CCD with negligible readout noise we obtained essentially diffraction-limited 810nm images of faint objects using nearby reference stars brighter than I=16 at a 2.56m telescope. The FWHM of the isoplanatic patch for the technique is found to be 50 arcseconds, providing ∼20% sky coverage around suitable reference stars.

Abstract Copyright: ∼

Journal keyword(s): techniques: high angular resolution - instrumentation: detectors - globular clusters: individual: M 13

Simbad objects: 4

Full paper

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Number of rows : 4

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Sp type	#ref 1850 - 2023	#notes
1	* zet Boo	**	14 41 08.95158	+13 43 41.8967	3.88	3.83	3.78	A1V	106	0
2	M 13	GlC	16 41 41.634	+36 27 40.75			5.8	~	2146	0
3	* 61 Cyg	**	21 06 53.95	+38 44 57.9				~	173	0
4	HD 203991	**	21 25 09.47891	+18 27 45.4144		7.79	7.73	A0	18	1

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