Analysis of isoplanatic high resolution stellar fields by the StarFinder code

By E. Diolaiti, O. Bendinelli, D. Bonaccini, L. Close, D. Currie, G. Parmeggiani. 2000

325 citations recorded by the source corpus.

We describe a new code for the deep analysis of stellar elds, designed for Adaptive Optics (AO) Nyquist- sampled images with high and low Strehl ratio. The Point Spread Function (PSF) is extracted directly from the im- age frame, to take into account the actual structure of the instrumental response and the atmospheric eects. The code is written in IDL language and organized in the form of a self-contained widget-based application, pro- vided with a series of tools for data visualization and anal- ysis. A description of the method and some applications to AO data are presented.

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/573e965134da04d7b24239af0def40476900e614

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. D. M. Alexander
2. P. Hopkins
3. L. Hernquist
4. F. Walter
5. R. Genzel
6. D. Narayanan
7. C. Conroy
8. D. Elbaz

In Atomic and Molecular Physics, and Optics

1. T. Alexander
2. R. Genzel
3. T. Ott
4. S. Gillessen
5. B. Bowler
6. A. Ghez
7. F. Eisenhauer
8. A. Eckart

In Instrumentation

1. D. M. Alexander
2. C. Conroy
3. P. Hopkins
4. L. Hernquist
5. P. V. van Dokkum
6. Mark Dickinson
7. E. Daddi
8. D. Elbaz

Citations in the corpus

• How to Constrain Your M Dwarf. II. The Mass–Luminosity–Metallicity Relation from 0.075 to 0.70 Solar Masses (2018, methodology): “StarFinder, however, failed on the tightest binaries, where it was unable to distinguish two stars and as a result, incorrectly built an extended PSF that fit the blended image.”
• VALIDATION OF THE EQUILIBRIUM MODEL FOR GALAXY EVOLUTION TO z ∼ 3 THROUGH MOLECULAR GAS AND DUST OBSERVATIONS OF LENSED STAR-FORMING GALAXIES (2013, methodology): “The first step is to perform a blind extraction with StarFinder (Diolaiti et al. 2000) on the 100µm, 160µm and 250µm maps.”
• Surface brightness profile of the Milky Way’s nuclear star cluster (2014, methodology): “Since the Spitzer images were slightly under-sampled with respect to their angular resolution, they were smoothed to a point-source full width at half maximum (FWHM) of ∼2.5 pixels before feeding them into StarFinder, which relies on adequately sampled data.”
• PLANETS AROUND LOW-MASS STARS (PALMS). IV. THE OUTER ARCHITECTURE OF M DWARF PLANETARY SYSTEMS (2014, methodology): “Automated point source identification is performed on the signal-to-noise maps using the max search routine in the StarFinder AO imaging software package (Diolaiti et al. 2000). max search identifies peak values above a threshold level relative to nearest neighbor pixel intensities.”
• Spitzer SAGE Survey of the Large Magellanic Cloud. II. Evolved Stars and Infrared Color-Magnitude Diagrams (2006, methodology): “The photometry was extracted via point-spread function (PSF) fitting using the StarFinder program (Diolaiti et al. 2000).”
• SPITZER SAGE SURVEY OF THE LARGE MAGELLANIC CLOUD. III. STAR FORMATION AND ∼1000 NEW CANDIDATE YOUNG STELLAR OBJECTS (2008, methodology): “Point source photometry was performed on the mosaic images using the point-spread function (PSF)-fitting program StarFinder (Diolaiti et al. 2000).”
• The primordial binary population. I. A near-infrared adaptive optics search for close visual companions to A star members of Scorpius OB2 (2004, unknown): “We used the STARFINDER package (Diolaiti et al. 2000) to determine the position and instrumental flux of all objects in the images.”
• Polarimetry of near-infrared flares from Sagittarius A* (2006, methodology): “PSFs (point spread functions) were extracted from all the single exposures using the StarFinder code (Diolaiti et al. 2000).”
• HerMES: CANDIDATE GRAVITATIONALLY LENSED GALAXIES AND LENSING STATISTICS AT SUBMILLIMETER WAVELENGTHS (2012, methodology): “Source detection is performed by StarFinder (Diolaiti et al. 2000) at 250µm.”
• REVERSAL OF FORTUNE: CONFIRMATION OF AN INCREASING STAR FORMATION–DENSITY RELATION IN A CLUSTER AT z = 1.62 (2010, methodology): “We extracted sources from the public SpUDS 24µm map using StarFinder (Diolaiti et al. 2000), an IDL-based PSFfitting code designed for crowded fields.”
• AN IMPROVED DISTANCE AND MASS ESTIMATE FOR SGR A* FROM A MULTISTAR ORBIT ANALYSIS (2016, methodology): “We therefore assign the error of each StarFinder Force 1 astrometric point so that the reduced chi-squared of the orbital fit with the additional point is approximately 1.”
• The Initial Mass Function of the Massive Star-forming Region NGC 3603 from Near-Infrared Adaptive Optics Observations (2007, methodology): “We adopted the PSF photometry for the detection of stellar objects and the derivation of instrumental magnitudes using the STARFINDER package implemented in IDL (Diolaiti et al. 2000).”
• The structure of the nuclear stellar cluster of the Milky Way (2006, methodology): “In the upper right panel, it shows the background light density determined with StarFinder.”
• The Two Young Star Disks in the Central Parsec of the Galaxy: Properties, Dynamics, and Formation (2006, methodology): “We then used STARFINDER (Diolaiti et al. 2000) to find and determine the photometry of all stars in the field.”
• Star and Protoplanetary Disk Properties in Orion's Suburbs (2009, methodology): “The psf-fitting program is based on the StarFinder code (Diolaiti et al. 2000).”
• GOODS–Herschel: an infrared main sequence for star-forming galaxies (2011, methodology): “We validated the efficiency of this technique by checking that no sources remain in the residual images after subtracting the detected sources or by independently extracting sources using a blind source extraction technique (Starfinder: Diolaiti et al. 2000).”
• The Far- and Mid-Infrared/Radio Correlations in the Spitzer Extragalactic First Look Survey (2004, methodology): “MIPS 24 and MIPS 70µm sources were extracted from the images using the StarFinder method (Diolaiti et al. 2000).”
• PACS Evolutionary Probe (PEP) – a Herschel key program (2011, methodology): “We have used both blind extraction via the Starfinder PSF-fitting code (Diolaiti et al. 2000) and a guided extraction using 24µm source priors, following the method described in Magnelli et al. (2009).”
• IMPROVING GALACTIC CENTER ASTROMETRY BY REDUCING THE EFFECTS OF GEOMETRIC DISTORTION (2010, methodology): “Astrometry was extracted using StarFinder (Diolaiti et al. 2000) in a similar manner as in Ghez et al. (2008), with a few minor modifications.”