2004ApJ...610.1204L

Query : 2004ApJ...610.1204L

2004ApJ...610.1204L - Astrophys. J., 610, 1204-1212 (2004/August-1)

Chandra ACIS subpixel event repositioning: further refinements and comparison between backside- and frontside-illuminated X-ray CCDs.

LI J., KASTNER J.H., PRIGOZHIN G.Y., SCHULZ N.S., FEIGELSON E.D. and GETMAN K.V.

Abstract (from CDS):

We further investigate subpixel event repositioning (SER) algorithms in application to Chandra X-Ray Observatory (Chandra) CCD imaging. SER algorithms have been applied to backside-illuminated (BI) Advanced CCD Imaging Spectrometer (ACIS) devices and demonstrate spatial resolution improvements in Chandra ACIS observations. Here a new SER algorithm that is charge split-dependent is added to the SER family. We describe the application of SER algorithms to frontside-illuminated (FI) ACIS devices. The results of SER for FI CCDs are compared with those obtained from SER techniques applied to BI CCD event data. Both simulated data and Chandra ACIS observations of the Orion Nebular Cluster were used to test and evaluate the achievement of the various SER techniques.

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Journal keyword(s): Instrumentation: Detectors - Methods: Data Analysis - Techniques: Image Processing - X-Rays: General

Nomenclature: Table 3: [LKP2004] NN (Nos 1-32).

Simbad objects: 35

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Number of rows : 35
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 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
2 2MASS J05350968-0523558 Y*O 05 35 09.6752680 -05 23 55.914015     24.50   18.207 ~ 28 0
3 V* LQ Ori Or* 05 35 10.7315904000 -05 23 44.694430944 15.088 13.527 12.455   10.159 K8 77 1
4 V* V2207 Ori Or* 05 35 10.9421935440 -05 24 48.691229652   13.6 17.074 16.95 13.426 M3e 60 0
5 2MASS J05351155-0524481 Y*? 05 35 11.557 -05 24 48.15           ~ 18 0
6 V* V1398 Ori Or* 05 35 13.4462334000 -05 23 40.264692468   15.790 14.937   12.516 K4 52 0
7 ALMA J053514.3138-052308.311 Y*O 05 35 14.3144052768 -05 23 08.304681156     21.70     M: 25 0
8 Parenago 1843 Or* 05 35 14.3956325544 -05 23 33.621412344     15.052   12.251 M1 61 0
9 [OW94] 147-302 Y*O 05 35 14.6648362632 -05 23 01.814574804     19.12   14.898 M0.5-M2.5 53 0
10 COUP 658 Or* 05 35 14.7233591568 -05 23 22.891605324   12.2     14.105 M3e 47 0
11 ** SMN 2A Y*O 05 35 14.7320 -05 22 29.823           ~ 22 0
12 COUP 673 Ir* 05 35 14.916 -05 24 12.41     18.60 15.82 14.157 ~ 18 0
13 V* V1331 Ori Or* 05 35 15.3447031560 -05 22 15.575087208   15.777 14.474   11.707 K3e 62 0
14 COUP 700 Y*? 05 35 15.3800973432 -05 23 33.381841020         13.972 M2e 29 0
15 2MASS J05351543-0523454 Or* 05 35 15.4407504000 -05 23 45.455162568         13.084 ~ 43 0
16 Parenago 1861 Or* 05 35 15.4849253016 -05 22 48.580319028     16.180   12.874 M2 49 1
17 COUP 725 Y*O 05 35 15.6793 -05 23 39.011           ~ 23 1
18 V* V2288 Ori Or* 05 35 16.3626946488 -05 25 09.695279892   13.2 15.89 15.04 13.79 M1.5 35 0
19 COUP 801 Or* 05 35 16.3757039592 -05 24 03.344873220     14.06     K4-K7 45 0
20 2MASS J05351671-0522309 Or* 05 35 16.7360320440 -05 22 31.251330192     18.10   14.820 M4 51 0
21 COUP 856 Or* 05 35 17.0598222040 -05 23 39.756219790   12.9     13.224 K8e 64 1
22 V* V2299 Ori Or* 05 35 17.0669790936 -05 23 34.044628704 14.962 14.224 13.322   11.118 K1 80 0
23 V* V1510 Ori Or* 05 35 17.5584374544 -05 22 56.774010216   15.991 15.003   12.239 K7+M1 52 0
24 V* V2336 Ori Or* 05 35 18.7049783856 -05 22 56.846447220     15.466   12.640 K5+M2 51 0
25 2MASS J05351921-0522506 Or* 05 35 19.2125163120 -05 22 50.680668972     17.099   13.882 K5 49 0
26 V* V2356 Ori Or* 05 35 19.6592535024 -05 24 26.602668792     15.711 13.17 12.835 M1.2e 70 0
27 V* V1520 Ori Or* 05 35 20.45352 -05 23 29.7708   17.572 15.912   12.924 M0+M3.5 49 0
28 2MASS J05352062-0524464 Or* 05 35 20.6266783920 -05 24 46.449551952   13.5 17.368 16.31 13.718 M2e 51 0
29 V* V1399 Ori Or* 05 35 21.0488798160 -05 23 49.016892876 14.154 13.231 12.376   10.605 G8 72 0
30 V* V1524 Ori B Or* 05 35 21.3080506200 -05 23 46.074249096           ~ 21 0
31 V* V1524 Ori Or* 05 35 21.35640 -05 23 45.4992   17.621 16.471   13.850 M1+M3.5 41 0
32 V* V1524 Ori A Y*? 05 35 21.3656316864 -05 23 45.441052980           ~ 44 0
33 V* V562 Ori Or* 05 35 22.1895865176 -05 24 24.883699860   15.389 14.215   11.958 K2.5 43 0
34 JW 741 Or* 05 35 23.6734629312 -05 24 57.390393240   13.2     14.056 M5 29 0
35 2MASS J05352380-0523342 Or* 05 35 23.8064308592 -05 23 34.289820206   13.2 16.651   13.509 M1e 35 1

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