2020A&A...644A..99P

Query : 2020A&A...644A..99P

2020A&A...644A..99P - Astronomy and Astrophysics, volume 644A99-99 (2020/12-1)

Planck intermediate results. LV. Reliability and thermal properties of high-frequency sources in the Second Planck Catalogue of Compact Sources.

PLANCK COLLABORATION, AKRAMI Y., ASHDOWN M., AUMONT J., BACCIGALUPI C., BALLARDINI M., BANDAY A.J., BARREIRO R.B., BARTOLO N., BASAK S., BENABED K., BERNARD J.-P., BERSANELLI M., BIELEWICZ P., BOND J.R., BORRILL J., BOUCHET F.R., BURIGANA C., CALABRESE E., CARVALHO P., CHIANG H.C., CRILL B.P., CUTTAIA F., DE ROSA A., DE ZOTTI G., DELABROUILLE J., DELOUIS J.-M., DI VALENTINO E., DIEGO J.M., DUPAC X., DUSINI S., EFSTATHIOU G., ELSNER F., ENSSLIN T.A., ERIKSEN H.K., FERNANDEZ-COBOS R., FINELLI F., FRAISSE A.A., FRANCESCHI E., FROLOV A., GALEOTTA S., GANGA K., GERBINO M., GONZALEZ-NUEVO J., GORSKI K.M., GRATTON S., GRUPPUSO A., GUDMUNDSSON J.E., HANDLEY W., HANSEN F.K., HERRANZ D., HIVON E., HOBSON M., HUANG Z., JONES W.C., KEIHANEN E., KESKITALO R., KIM J., KISNER T.S., KRACHMALNICOFF N., KUNZ M., KURKI-SUONIO H., LAMARRE J.-M., LASENBY A., LATTANZI M., LAWRENCE C.R., LE JEUNE M., LEVRIER F., LILJE P.B., LINDHOLM V., LOPEZ-CANIEGO M., MA Y.-Z., MACIAS-PEREZ J.F., MAGGIO G., MANDOLESI N., MARCOS-CABALLERO A., MARIS M., MARTIN P.G., MARTINEZ-GONZALEZ E., MATARRESE S., MAURI N., McEWEN J.D., MIGLIACCIO M., MOLINARI D., MONETI A., MONTIER L., MORGANTE G., NATOLI P., PAOLETTI D., PARTRIDGE B., PERROTTA F., PETTORINO V., PIACENTINI F., POLENTA G., PUGET J.-L., RACHEN J.P., REINECKE M., REMAZEILLES M., RENZI A., ROCHA G., ROUDIER G., RUIZ-GRANADOS B., SAVELAINEN M., SCOTT D., SIRRI G., SPENCER L.D., SUUR-USKI A.-S., TAUBER J.A., TAVAGNACCO D., TENTI M., TOFFOLATTI L., TOMASI M., TROMBETTI T., VALIVIITA J., VAN TENT B., VIELVA P., VILLA F., WEHUS I.K., ZACCHEI A. and ZONCA A.

Abstract (from CDS):

We describe an extension of the most recent version of the Planck Catalogue of Compact Sources (PCCS2), produced using a new multi-band Bayesian Extraction and Estimation Package (BeeP). BeeP assumes that the compact sources present in PCCS2 at 857 GHz have a dust-like spectral energy distribution (SED), which leads to emission at both lower and higher frequencies, and adjusts the parameters of the source and its SED to fit the emission observed in Planck's three highest frequency channels at 353, 545, and 857 GHz, as well as the IRIS map at 3000 GHz. In order to reduce confusion regarding diffuse cirrus emission, BeeP's data model includes a description of the background emission surrounding each source, and it adjusts the confidence in the source parameter extraction based on the statistical properties of the spatial distribution of the background emission. BeeP produces the following three new sets of parameters for each source: (a) fits to a modified blackbody (MBB) thermal emission model of the source; (b) SED-independent source flux densities at each frequency considered; and (c) fits to an MBB model of the background in which the source is embedded. BeeP also calculates, for each source, a reliability parameter, which takes into account confusion due to the surrounding cirrus. This parameter can be used to extract sub-samples of high-frequency sources with statistically well-understood properties. We define a high-reliability subset (BeeP/base), containing 26083 sources (54.1% of the total PCCS2 catalogue), the majority of which have no information on reliability in the PCCS2. We describe the characteristics of this specific high-quality subset of PCCS2 and its validation against other data sets, specifically for: the sub-sample of PCCS2 located in low-cirrus areas; the Planck Catalogue of Galactic Cold Clumps; the Herschel GAMA15-field catalogue; and the temperature- and spectral-index-reconstructed dust maps obtained with Planck's Generalized Needlet Internal Linear Combination method. The results of the BeeP extension of PCCS2, which are made publicly available via the Planck Legacy Archive, will enable the study of the thermal properties of well-defined samples of compact Galactic and extragalactic dusty sources.

Abstract Copyright: © ESO 2020

Journal keyword(s): catalogs - cosmology: observations - submillimeter: general

Simbad objects: 14

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Number of rows : 14
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 NGC 894 Sy2 02 21 36.470 -05 31 17.02 12.21 12.26 11.73     ~ 163 2
2 PCCS2 857 G207.16-60.71 ? 02 56 52.4905 -20 43 52.476           ~ 1 0
3 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
4 [RLK73] IRc 2 IR 05 35 14.51548 -05 22 30.5943           ~ 673 1
5 NAME Ori A MoC 05 38 -07.1           ~ 3187 0
6 PCCS2 857 G172.20+32.04 ? 08 07 03.3426 +47 13 48.844           ~ 1 0
7 [CRR2012] HLS J091828.6+514223 G 09 18 28.60 +51 42 23.3           ~ 43 0
8 PCCS1 857 G138.62+62.03 LeG 12 02 07.68 +53 34 40.0           ~ 12 0
9 M 100 AGN 12 22 54.9299993592 +15 49 20.296257960 10.04 10.05 9.35     ~ 1963 2
10 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
11 H-ATLAS J144011.1-001719 LeG 14 40 11.107 -00 17 19.35           ~ 2 0
12 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
13 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
14 MSXDC G033.69-00.01 DNe 18 52 57.6 +00 42 59           ~ 8 0

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