2019MNRAS.490.3952B

Query : 2019MNRAS.490.3952B

2019MNRAS.490.3952B - Mon. Not. R. Astron. Soc., 490, 3952-3965 (2019/December-2)

Deblending and classifying astronomical sources with Mask R-CNN deep learning.

BURKE C.J., ALEO P.D., CHEN Y.-C., LIU X., PETERSON J.R., SEMBROSKI G.H. and LIN J.Y.-Y.

Abstract (from CDS):

We apply a new deep learning technique to detect, classify, and deblend sources in multiband astronomical images. We train and evaluate the performance of an artificial neural network built on the Mask Region-based Convolutional Neural Network image processing framework, a general code for efficient object detection, classification, and instance segmentation. After evaluating the performance of our network against simulated ground truth images for star and galaxy classes, we find a precision of 92 per cent at 80 per cent recall for stars and a precision of 98 per cent at 80 per cent recall for galaxies in a typical field with ∼30 galaxies arcmin–2. We investigate the deblending capability of our code, and find that clean deblends are handled robustly during object masking, even for significantly blended sources. This technique, or extensions using similar network architectures, may be applied to current and future deep imaging surveys such as Large Synoptic Survey Telescope and Wide-Field Infrared Survey Telescope. Our code, ASTRO R-CNN, is publicly available at https://github.com/burke86/astro_rcnn.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): methods: data analysis - techniques: image processing - galaxies: general

Simbad objects: 1

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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 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0

Query : 2019MNRAS.490.3952B

Basic data :
ACO 1689 -- Cluster of Galaxies
Other object types: otypes_help 		ClG (2004A&A,ACO,...), X (2020ApJ,2E,...), gLe (2001ApJ), C?G (2014A&A,XCLASS)
ICRS coord. (ep=J2000) : 		13 11 29.5 -01 20 28 (Optical) [ ] E 2016ApJS..224....1R
FK4 coord. (ep=B1950 eq=1950) : 		13 08 55.3 -01 04 32 [ ]
Gal coord. (ep=J2000) : 		313.3549 +61.1242 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 50208 [~] / z(spectroscopic) 0.1842 [~] / cz 55222 [~]
   (Opt) C 2016ApJ...819...63R
Angular size (arcmin): 		4.0 4.0 ~ (Rad) D 2015ApJ...813...77Y
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1
: 484 		: 247 Display criteria :

Identifiers (33) :
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ACO 1689 HMS 1309-0105 RXC J1311.4-0120 [F81] 259
ACT-CL J1311.5-0119 2MAXI J1311-014 RXC J1311.5-0120 [KMA2007] 197.87292-01.34110
BAX 197.8925-01.3654 MCXC J1311.5-0120 1RXS J131129.5-012017 [RRB2014] RM J131129.5-012028.0
ClG 1309.0-0106 NSC J131122-012108 XCLASS 22908 [SPD2011] 11
2E 2986 PLCKESZ G313.36+61.11 XMMXCS J131129.8-012024.5 [WHL2009] J131132.1-011946
2E 1308.9-0104 PSZ1 G313.33+61.13 XSS J13124-0125 [WHL2012] J131129.5-012028
1ES 1308-01.0 PSZ2 G313.33+61.13 ZwCl 5765
EXSS 1308.9-0103 PSZRX G313.36+61.13 [B2017] 1646
GMBCG 197.87292-01.34109 RBS 1227 [EAD2007] SDSS +197.9-01.3+0.20

References (1178 between 1850 and 2026) (Total 1178)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 10   

   

Observing logs
Herschel : 17    ISO : 9    XMM : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : ACO 1689

Link by name to the catalogue in VizieR :

ACO 1689 2E 2986 RXC J1311.4-0120 RXC J1311.5-0120 1RXS J131129.5-012017

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