J/A+A/574/A109 Spectroscopy of Planetary Nebulae in NGC 5128 (Walsh+, 2015) ================================================================================ An imaging and spectroscopic study of the planetary nebulae in NGC 5128 (Centaurus A). Planetary nebula catalogues. Walsh J.R., Rejkuba M., Walton N.A. =2015A&A...574A.109W ================================================================================ ADC_Keywords: Galaxies, nearby ; Planetary nebulae ; Photometry, CCD ; Radial velocities Keywords: galaxies: kinematics and dynamics - planetary nebulae: general - galaxies: elliptical and lenticular, cD Abstract: Planetary nebulae (PNe) are excellent tracers of the common low mass stars through their strong and narrow emission lines. The velocities of large numbers of PNe are excellent tracers of galaxy kinematics. NGC 5128, the nearest large early-type galaxy offers the possibility to gather a large PN sample. Imaging and spectroscopic observations of PNe in NGC 5128 were obtained to find PNe and measure their velocities. Combined with literature data, a large sample of high quality kinematic probes is assembled for dynamical studies in NGC 5128. NTT Imaging was obtained in 15 fields in NGC 5128 over 1 degree with EMMI and [OIII] and off-band filters. Newly detected emission sources, combined with literature PN, were used as input for FLAMES multi-fibre spectroscopy in MEDUSA mode. Spectra of the 4600-5100{AA} region were analysed and velocities were measured based on [OIII]4959,5007{AA} and often H{beta}. The chief results are catalogues of 1118 PN candidates and 1267 spectroscopically confirmed PNe in NGC 5128. The catalogue of PN candidates contains 1060 potential PNe discovered with NTT EMMI imaging and 58 from literature surveys. The spectroscopically confirmed PN catalogue has FLAMES radial velocity and emission line measurements for 1135 PNe, of which 486 are newly confirmed here. An additional 132 PN radial velocities are available from the literature. For 629 PNe observed with FLAMES, H-beta was measured in addition to the [OIII] emission lines. Nine targets show double-lined or more complex profiles (19 components in total), and their possible origin is discussed. FLAMES spectra of 48 globular clusters were also targetted, and 11 had emission lines detected (two with multiple components), but only 3 are PNe likely to belong to the host globular. Conclusions. The total of 1267 confirmed PNe in NGC 5128 with radial velocity measurements, of which 1135 have small velocity errors, is the largest such collection of individual kinematic probes in an early-type galaxy. This PN dataset, as well as the catalogue of 1118 PN candidates, are valuable resources for detailed investigation of the kinematics and stellar population of NGC 5128. Description: Planetary nebula candidates were determined from EMMI imaging on and off band [OIII]5007{AA} imaging and the catalogue is presented in table7. For PN candidates in common with the previous literature studies within 1 arcsec matching radius, columns 5 and 6 list the ID and 5007{A}, magnitude from Hui et al. (1993ApJS...88..423H, Cat. J/ApJS/88/423), and in the last column the ID from Peng et al. (2004ApJ...602..685P, Cat. J/ApJ/602/685). PN candidates from literature (Table 7 of Peng et al. 2004, Cat. J/ApJ/602/685) that have no radial velocity measurements to date are listed in table 8. The RA and DEC are shifted to match the astrometric system of Table 7. ID and 5007{AA} magnitude are from Hui et al. (1993, Cat. J/ApJS/88/423). Radial velocity, radial velocity error and 5007{AA} line FWHM measurements for 1107 single velocity component PNe are collected in table 9 observed with FLAMES within the SV and GO runs. In addition identifiers from EMMI, Hui et al. (1993, Cat. J/ApJS/88/423), and Peng et al. (2004, Cat. J/ApJ/602/685) catalogues, 5007{AA} magnitudes from EMMI and Hui et al. (1993, Cat. J/ApJS/88/423) are listed, as well as radial velocities from Peng et al. (2004, Cat. J/ApJ/602/685), for those PN in common between the matched catalogues. Note that the coordinates of the PN observed in the SV run are offset by {Delta}{alpha}=-0.225-arcseconds and {Delta}{delta}=-0.093-arcseconds with respect to the EMMI astrometry that was used for the GO run. Relative flux of the [OIII]5007{AA} line, the [OIII]5007{AA}/H{beta} and the HeII4686{AA}/H{beta} line ratio measurements (where H{beta} and HeII lines detected) for all PN observed with FLAMES within the SV and GO runs. An additional 132 PNe with radial velocity measurements from Peng et al. (2004, Cat. J/ApJ/602/685) that were not observed with FLAMES are listed in table 11. The velocities listed are taken directly from the Peng et al. (2004, Cat. J/ApJ/602/685) catalogue and should be shifted by +7.9km/s when combining with the FLAMES velocities in table 9 in order to produce a single coherent dataset. The RA and DEC are shifted to match the astrometric system of table 7. For PNe with double and triple component line detections, see Table 12 of the paper. For PN/emission line targets detected at the positions of globular clusters, see Table 13 of the paper. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table7.dat 59 1060 PN candidates from on-off band [OIII] imaging table8.dat 46 58 PN candidates from literature without radial velocities table9.dat 104 1107 *For all PNe with single line velocities, radial velocity and emission line fits from FLAMES spectroscopy table10.dat 58 1107 For all PNe with single line velocities, relative flux of [OIII] 5007{AA} and line ratio 5007{AA} to H{beta} and HeII 4686{AA} to H{beta} table11.dat 65 132 PNe with radial velocity from Table 6 of Peng et al. (2004, Cat. J/ApJ/602/685) not observed with FLAMES -------------------------------------------------------------------------------- Note on table9.dat: This electronic version of table 9 has one extra column, differing from Table 9 of the paper. Col. 2 of this electronic version of the table lists the catalogue name. FLAMES Medusa fibres for 3 targets, observed in the SV run, were incorrectly positioned at coordinates not corresponding to the those in the Hui et al. 1993 (J/ApJS/88/423) catalogue. However emission lines were detected at these positions. The three PN are named WRW_SV_PN1, WRW_SV_PN2, WRW_SV_PN3 in table 9, and also in table 10. It was found that the coordinates of the following PN from Hui et al. 1993 (J/ApJS/88/423) were incorrectly transcribed in the Vizier on-line catalogue: 231, 1301 and 4414. -------------------------------------------------------------------------------- See also: J/ApJS/88/423 : PNe in NGC 5128 (Hui+ 1993) J/ApJ/449/592 : NGC 5128 PN. III. (Hui+ 1995) J/ApJ/602/685 : NGC 5128 planetary nebulae (Peng+, 2004) Byte-by-byte Description of file: table7.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 I4 --- EMMI [3/2560] EMMI ID number 7- 8 I2 h RAh Right ascension (J2000.0) 10- 11 I2 min RAm Right ascension (J2000.0) 13- 17 F5.2 s RAs Right ascension (J2000.0) 19 A1 --- DE- Declination sign (J2000.0) 20- 21 I2 deg DEd Declination (J2000.0) 23- 24 I2 arcmin DEm Declination (J2000.0) 26- 29 F4.1 arcsec DEs Declination (J2000.0) 32- 36 F5.2 mag m5007E 5007{AA} magnitude (EMMI) 39- 43 I5 --- H93 [253/42127]? Corresponding ID in Hui et al. 1993 (G1) 46- 50 F5.2 mag m5007H ? 5007{AA} magnitude (Hui et al., 1993) (G1) 53- 59 A7 --- P04 Corresponding ID in Peng et al. 2004) (G1) -------------------------------------------------------------------------------- Byte-by-byte Description of file: table8.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 7 A7 --- P04 Peng et al. (2004) catalogue name (G1) 10- 11 I2 h RAh Right Ascension J2000 (hours) 13- 14 I2 min RAm Right Ascension J2000 (minutes) 16- 20 F5.2 s RAs Right Ascension J2000 (seconds) 22 A1 --- DE- Declination J2000 (sign) 23- 24 I2 deg DEd Declination J2000 (degrees) 26- 27 I2 arcmin DEm Declination J2000 (minutes) 29- 32 F4.1 arcsec DEs Declination J2000 (seconds) 35- 39 I5 --- H93 [232/6122]? Corresponding ID in Hui et al. (G1) 42- 46 F5.2 mag m5007H ? 5007{AA} magnitude (Hui et al., 1993) (G1) -------------------------------------------------------------------------------- Byte-by-byte Description of file: table9.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 2 A2 --- OB [GO SV] Observing block: GO=Open time; SV=Science Verification 4- 18 A15 --- Name Source name (G2) 21- 22 I2 h RAh Right Ascension J2000 (hours) 24- 25 I2 min RAm Right Ascension J2000 (minutes) 27- 31 F5.2 s RAs Right Ascension J2000 (seconds) 33 A1 --- DE- Declination J2000 (sign) 34- 35 I2 deg DEd Declination J2000 (degrees) 37- 38 I2 arcmin DEm Declination J2000 (minutes) 40- 43 F4.1 arcsec DEs Declination J2000 (seconds) 46- 51 F6.1 km/s RV [70/1001] Radial velocity 53- 56 F4.1 km/s e_RV [0.1/23.6] Radial velocity error (1-sigma) 59- 63 F5.1 km/s FWHM [12/179] Full width half maximum of [OIII] 5007{AA} emission line 66- 69 I4 --- EMMI [2/2518]? EMMI catalogue number 72- 76 F5.2 mag m5007E ? 5007{AA} magnitude (EMMI) 79- 83 I5 --- H93 ? Corresponding ID in Hui et al. (1993) (G1) 86- 90 F5.2 mag m5007H ? 5007{AA} magnitude (Hui et al., 1993) (G1) 93- 99 A7 --- P04 Corresponding ID in Peng et al. (2004) (G1) 102-104 I3 km/s RVP ? Radial velocity in Peng et al. (2004) (G1) -------------------------------------------------------------------------------- Byte-by-byte Description of file: table10.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 15 A15 --- Name Catalogue name (G2) 18- 19 I2 h RAh Right Ascension J2000 (hours) 21- 22 I2 min RAm Right Ascension J2000 (minutes) 24- 28 F5.2 s RAs Right Ascension J2000 (seconds) 30 A1 --- DE- Declination J2000 (sign) 31- 32 I2 deg DEd Declination J2000 (degrees) 34- 35 I2 arcmin DEm Declination J2000 (minutes) 37- 40 F4.1 arcsec DEs Declination J2000 (seconds) 43- 47 F5.1 --- F5007 [1/187] Line flux [OIII]5007{AA} (relative units) 50- 53 F4.1 --- OIII/Hb [0.1/44]? Ratio [OIII]5007{AA} to H{beta} 56- 58 F3.1 --- HeII/Hb [0.2/1.2]? Ratio HeII4686{AA} to H{beta} -------------------------------------------------------------------------------- Byte-by-byte Description of file: table11.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 8 A8 --- P04 ID in Peng et al. (2004) (G1) 11- 12 I2 h RAh Right Ascension J2000 (hours) 14- 15 I2 min RAm Right Ascension J2000 (minutes) 17- 21 F5.2 s RAs Right Ascension J2000 (seconds) 23 A1 --- DE- Declination J2000 (sign) 24- 25 I2 deg DEd Declination J2000 (degrees) 27- 28 I2 arcmin DEm Declination J2000 (minutes) 30- 33 F4.1 arcsec DEs Declination J2000 (seconds) 36- 38 I3 km/s RV Radial velocity 41- 45 I5 --- H93 ? Corresponding ID in Hui et al. (1993) (G1) 48- 52 F5.2 mag m5007H ? 5007{AA} magnitude (Hui et al., 1993) (G1) 55- 58 I4 --- EMMI ? Corresponding EMMI ID 61- 65 F5.2 mag m5007E ? EMMI 5007{AA} magnitude -------------------------------------------------------------------------------- Global notes: Note (G1): Identifications in * Hui et al. 1993 (J/ApJS/88/423), <[HFC93] NNNNN> in Simbad. * Peng et al. 2004 (J/ApJ/602/685), [PFF2004b] in Simbad Note (G2): Source name is: * EMMI_NNNNN for EMMI names (table7) * Hui93_NNNNN for Hui et al. 1993 (J/ApJS/88/423), * P04_AAAAAAAA for Peng et al. 2004 (J/ApJ/602/685) -------------------------------------------------------------------------------- Acknowledgements: J.R. Walsh, jwalsh(at)eso.org ================================================================================ (End) Patricia Vannier [CDS] 19-Dec-2014