- ID:
- ivo://CDS.VizieR/J/A+A/619/A94
- Title:
- Planck Multi-frequency Cat. of Non-thermal Sources
- Short Name:
- J/A+A/619/A94
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- This paper presents the Planck Multi-frequency Catalogue of Non-thermal (i.e. synchrotron-dominated) Sources (PCNT) observed between 30 and 857GHz by the ESA Planck mission. This catalogue was constructed by selecting objects detected in the full mission all-sky temperature maps at 30 and 143GHz, with a signal-to-noise ratio S/N>3 in at least one of the two channels after filtering with a particular Mexican hat wavelet. As a result, 29400 source candidates were selected. Then, a multi-frequency analysis was performed using the Matrix Filters methodology at the position of these objects, and flux densities and errors were calculated for all of them in the nine Planck channels. This catalogue was built using a different methodology than the one adopted for the Planck Catalogue of Compact Sources (PCCS) and the Second Planck Catalogue of Compact Sources (PCCS2), although the initial detection was done with the same pipeline that was used to produce them. The present catalogue is the first unbiased, full-sky catalogue of synchrotron-dominated sources published at millimetre and submillimetre wavelengths and constitutes a powerful database for statistical studies of non-thermal extragalactic sources, whose emission is dominated by the central active galactic nucleus. Together with the full multi-frequency catalogue, we also define the Bright Planck Multi-frequency Catalogue of Non-thermal Sources (PCNTb), where only those objects with a S/N>4 at both 30 and 143GHz were selected. In this catalogue 1146 compact sources are detected outside the adopted Planck GAL070 mask; thus, these sources constitute a highly reliable sample of extragalactic radio sources. We also flag the high-significance subsample (PCNThs), a subset of 151 sources that are detected with S/N>4 in all nine Planck channels, 75 of which are found outside the Planck mask adopted here. The remaining 76 sources inside the Galactic mask are very likely Galactic objects
Number of results to display per page
Search Results
- ID:
- ivo://CDS.VizieR/J/A+A/562/A106
- Title:
- Planck submillimetre sources in Virgo Cluster
- Short Name:
- J/A+A/562/A106
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We cross-correlate the Planck Catalogue of Compact Sources (PCCS) with the fully sampled 84deg^2^ Herschel Virgo Cluster Survey (HeViCS) fields. We search for and identify the 857 and 545GHz PCCS sources in the HeViCS fields by studying their FIR/submm and optical counterparts. We find 84 and 48 compact Planck sources in the HeViCS fields at 857 and 545GHz, respectively. Almost all sources correspond to individual bright Virgo Cluster galaxies. The vast majority of the Planck detected galaxies are late-type spirals, with the Sc class dominating the numbers, while early-type galaxies are virtually absent from the sample, especially at 545GHz. We compare the HeViCS SPIRE flux densities for the detected galaxies with the four different PCCS flux density estimators and find an excellent correlation with the aperture photometry flux densities, even at the highest flux density levels. We find only seven PCCS sources in the HeViCS fields without a nearby galaxy as obvious counterpart, and conclude that all of these are dominated by Galactic cirrus features or are spurious detections. No Planck sources in the HeViCS fields seem to be associated to high-redshift proto-clusters of dusty galaxies or strongly lensed submm sources. Finally, our study is the first empirical confirmation of the simulation-based estimated completeness of the PCCS, and provides a strong support of the internal PCCS validation procedure.
- ID:
- ivo://CDS.VizieR/J/ApJ/657/76
- Title:
- Planetary nebula candidates in 3 galaxies
- Short Name:
- J/ApJ/657/76
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We report the results of an [OIII] {lambda}5007 survey for PNe in five galaxies that were hosts of well-observed SNe Ia: NGC 524, NGC 1316, NGC 1380, NGC 1448, and NGC 4526. The goals of this survey are to better quantify the zero point of the maximum magnitude-decline rate relation for SNe Ia and to validate the insensitivity of Type Ia luminosity to parent stellar population using the host galaxy Hubble type as a surrogate. We detected a total of 45 PN candidates in NGC 1316, 44 candidates in NGC 1380, and 94 candidates in NGC 4526.
- ID:
- ivo://CDS.VizieR/J/ApJ/339/53
- Title:
- Planetary nebulae as standard candles. II.
- Short Name:
- J/ApJ/339/53
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the results of a planetary nebula survey of M31's bulge performed with the Kitt Peak No. 1, 0.9m telescope and on-band off-band {lambda}5007 filters. We detected a total of 429 planetary nebulae (PNs), of which 104 are members of a statistically complete and homogeneous sample covering the top 2.5mag of the planetary nebula luminosity function (PNLF).
- ID:
- ivo://CDS.VizieR/J/ApJ/344/704
- Title:
- Planetary nebulae as standard candles. III.
- Short Name:
- J/ApJ/344/704
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the results of a survey for planetary nebulae in the nearby Sb galaxy M81 (NGC 3031). Using the Kitt Peak 4m telescope and a TI CCD, we identify 185 planetary nebula candidates. Photometry of the nebulae extends nearly 2.5mag below the brightest candidate, although the sample is statistically homogeneous and complete for only 88 nebulae representing the top 1.2mag of the luminosity function.
- ID:
- ivo://CDS.VizieR/J/ApJ/344/715
- Title:
- Planetary nebulae as standard candles. IV.
- Short Name:
- J/ApJ/344/715
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the results of a planetary nebula survey of galaxies in the Leo I group performed with the Kitt Peak and Cerro Tololo 4m telescopes and on-band off-band {lambda}5007 interference filters. In all, we detected 249 PN candidates populating the top 1.5mag of the planetary nebula luminosity function (PNLF), including 93 in the E0 galaxy NGC 3379, 54 in the E6 galaxy NGC 3377, and 102 in the S0 spiral NGC 3384.
- ID:
- ivo://CDS.VizieR/J/ApJ/416/62
- Title:
- Planetary nebulae as standard candles. IX.
- Short Name:
- J/ApJ/416/62
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the results of a planetary nebula (PN) survey of three galaxies in the Fornax Cluster performed with the Cerro Tololo 4m telescope and on-band off-band [O III] {lambda}5007 interference filters. In all, we detected 224 PN candidates : 105 in the peculiar SO/Sa galaxy NGC 1316 (Fornax A), 47 in the E2 galaxy NGC 1404, and 72 in the central cD of the cluster NGC 1399. Using statistically complete samples of planetaries and the procedures described in previous papers in the series, we derive distances to these galaxies from the planetary nebula luminosity function (PNLF).
- ID:
- ivo://CDS.VizieR/J/ApJ/356/332
- Title:
- Planetary nebulae as standard candles. V.
- Short Name:
- J/ApJ/356/332
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We identify and measure the [O III] {lambda}5007 fluxes of 486 planetary nebula candidates in six early-type galaxies (NGC 4374, 4382, 4406, 4472, 4486, and 4649) in the core of the Virgo Cluster. Following the procedures and calibrations outlined in previous papers in this series, we compare the observed planetary nebula luminosity functions to an empirical model based on the planetary nebulae in M31 and derive distances to the galaxies of 15.7, 14.4, 15.7, 13.9, 14.5, and 14.2Mpc.
- ID:
- ivo://CDS.VizieR/J/ApJ/383/487
- Title:
- Planetary nebulae as standard candles. VII.
- Short Name:
- J/ApJ/383/487
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present the results of an [O III] {lambda}5007 survey for planetary nebulae in the NGC 1023 Group. In all, we detected 143 planetary nebula candidates: 110 in the SB0 galaxy NGC 1023 and 33 in the halo of the edge-on Sb spiral NGC 891. Using a statistically complete and homogeneous sample of planetary nebulae and the procedures described in previous papers in the series, we derive distances to these galaxies using the planetary nebula luminosity function (PNLF). After correcting for foreground extinction by using the estimated reddening values of Burstein and Heiles, we find the distance moduli for NGC 1023 and NGC 891 are 29.97+/-0.14 and 29.97+/-.16, respectively. The similarity of these distances demonstrates the insensitivity of the PNLF to galaxy Hubble types and population age, and again confirms it as one of the best extragalactic standard candles.
- ID:
- ivo://CDS.VizieR/J/other/RAA/18.140
- Title:
- Planetary nebulae in circumnuclear region of M31
- Short Name:
- J/other/RAA/18.1
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Planetary nebulae (PNe) are an important tool for studying the dynamics and chemical evolution of galaxies in the Local Universe, given their characteristic bright emission line spectra. The Andromeda Galaxy (M31) provides a unique laboratory for studying PNe in the circumnuclear region, thanks to its proximity and almost uniformly low line-of-sight extinction that ensures observations with high resolution and sensitivity. Using the WIYN/Hydra multi-fiber spectrograph, we have obtained optical (4119-6882{AA}) spectra of 77 PN candidates selected from Hubble Space Telescope narrow-band imaging, which are located within the central ~500 pc region of M31. Among these candidates, 49 (64%) are spectroscopically observed for the first time. The spectra of 300 previously known PNe and HII regions, which primarily reside in the disk, are also taken for comparison. All 77 circumnuclear PN candidates exhibit prominent emission lines, including [OIII] {lambda}5007, [NII] {lambda}6583, H{alpha} and H{beta}, strongly suggesting that they are genuine PNe. We measured the line fluxes, radial velocities and line widths for all objects, and found that the radial velocities of the circumnuclear PNe generally trace rotation of the inner bulge. We also estimated a dynamical mass of ~6.4+/-0.5x10^9^M_{sun}_ enclosed within an effective galactocentric radius of 340 pc, which is compatible with the previously estimated total stellar mass in this region.
