2019ApJ...875..100D


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.06CET06:25:32

2019ApJ...875..100D - Astrophys. J., 875, 100-100 (2019/April-3)

Microarcsecond VLBI pulsar astrometry With PSRπ II. Parallax distances for 57 pulsars.

DELLER A.T., GOSS W.M., BRISKEN W.F., CHATTERJEE S., CORDES J.M., JANSSEN G.H., KOVALEV Y.Y., LAZIO T.J.W., PETROV L., STAPPERS B.W. and LYNE A.

Abstract (from CDS):

We present the results of PSRπ, a large astrometric project targeting radio pulsars using the Very Long Baseline Array (VLBA). From our astrometric database of 60 pulsars, we have obtained parallax-based distance measurements for all but 3, with a parallax precision that is typically ∼45 µas and approaches 10 µas in the best cases. Our full sample doubles the number of radio pulsars with a reliable (>=5σ) model-independent distance constraint. Importantly, many of the newly measured pulsars are well outside the solar neighborhood, and so PSRπ brings a near-tenfold increase in the number of pulsars with a reliable model-independent distance at d > 2 kpc. Our results show that both widely used Galactic electron density distribution models contain significant shortcomings, particularly at high Galactic latitudes. When comparing our results to pulsar timing, two of the four millisecond pulsars in our sample exhibit significant discrepancies in their proper motion estimates. With additional VLBI observations that extend our sample and improve the absolute positional accuracy of our reference sources, we will be able to additionally compare pulsar absolute reference positions between VLBI and timing, which will provide a much more sensitive test of the correctness of the solar system ephemerides used for pulsar timing. Finally, we use our large sample to estimate the typical accuracy attainable for differential VLBA astrometry of pulsars, showing that for sufficiently bright targets observed eight times over 18 months, a parallax uncertainty of 4 µas per arcminute of separation between the pulsar and calibrator can be expected.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrometry - galaxies: ISM - pulsars: general - stars: neutron - techniques: high angular resolution

Status in Simbad:  waiting for electronic table

Simbad objects: 62

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Number of rows : 62

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 PSR B0037+56 Psr 00 40 32.362 +57 16 24.91           ~ 32 0
2 PSR B0052+51 Psr 00 55 45.378 +51 17 24.97           ~ 35 0
3 PSR B0059+65 Psr 01 02 32.958 +65 37 13.40           ~ 38 0
4 PSR B0105+65 Psr 01 08 22.64 +66 08 34.0           ~ 64 0
5 PSR B0144+59 Psr 01 47 44.6597 +59 22 03.216           ~ 49 0
6 PSR B0148-06 Psr 01 51 22.701 -06 35 02.80           ~ 79 0
7 PSR B0149-16 Psr 01 52 10.8536 -16 37 52.990           ~ 103 0
8 PSR B0154+61 Psr 01 57 49.930 +62 12 25.90           ~ 104 0
9 PSR B0320+39 Psr 03 23 26.618 +39 44 52.90           ~ 106 0
10 PSR B0329+54 Psr 03 32 59.3462817079 +54 34 45.047901390           ~ 560 1
11 PSR B0331+45 Psr 03 35 16.6471 +45 55 53.480           ~ 32 0
12 PSR B0353+52 Psr 03 57 44.8153 +52 36 57.700           ~ 33 0
13 PSR B0402+61 Psr 04 06 30.046 +61 38 40.92           ~ 72 0
14 PSR B0559-05 Psr 06 01 58.9821 -05 27 50.560           ~ 75 0
15 PSR B0611+22 Psr 06 14 17.25 +22 30 37.4           ~ 233 0
16 PSR B0626+24 Psr 06 29 05.728 +24 15 43.30           ~ 88 0
17 PSR B0727-18 Psr 07 29 32.351 -18 36 42.75           ~ 71 0
18 PSR J0823+0159 Psr 08 23 09.788 +01 59 12.56           DA 206 0
19 PSR B0823+26 Psr 08 26 51.4 +26 37 23           ~ 453 1
20 PSR J1022+10 Psr 10 22 58.011 +10 01 52.85           ~ 170 2
21 NGC 3561 LIN 11 11 13.2 +28 41 47   14.7       ~ 186 2
22 PSR B1133+16 Psr 11 36 03.180 +15 51 09.62           ~ 595 0
23 PSR B1254-10 Psr 12 57 04.769 -10 27 05.80           ~ 30 0
24 PSR B1322+83 Psr 13 21 46.180 +83 23 38.92           ~ 53 0
25 PSR B1508+55 Psr 15 09 25.7 +55 31 33           ~ 261 1
26 PSR B1530+27 Psr 15 32 10.364 +27 45 49.40           ~ 94 0
27 PSR B1540-06 Psr 15 43 30.1579 -06 20 45.250           ~ 92 0
28 PSR B1604-00 Psr 16 07 12.1034 -00 32 40.830           ~ 197 0
29 PSR B1620-09 Psr 16 23 17.676 -09 08 49.20           ~ 41 0
30 PSR B1642-03 Psr 16 45 02.0414 -03 17 58.320           ~ 315 0
31 PSR J1650-1654 Psr 16 50 27.20 -16 54 40.0           ~ 19 0
32 PSR B1700-18 Psr 17 03 51.088 -18 46 15.80           ~ 44 0
33 PSR B1732-07 Psr 17 35 04.9717 -07 24 52.490           ~ 47 0
34 PSR B1738-08 Psr 17 41 22.555 -08 40 31.80           ~ 69 0
35 PSR B1753+52 Psr 17 54 22.92 +52 01 12.3           ~ 27 0
36 PSR B1818-04 Psr 18 20 52.607 -04 27 38.12           ~ 186 0
37 PSR B1831-03 Psr 18 33 41.914 -03 39 04.33           ~ 59 0
38 PSR B1839+56 Psr 18 40 44.608 +56 40 55.47           ~ 85 0
39 PSR J1901-0906 Psr 19 01 53.015 -09 06 10.80           ~ 30 0
40 PSR B1910+20 Psr 19 12 43.354 +21 04 33.80           ~ 64 0
41 PSR B1911+13 Psr 19 13 24.3574 +14 00 52.720           ~ 57 0
42 PSR B1915+13 Psr 19 17 39.7902 +13 53 56.950           ~ 161 0
43 PSR B1917+00 Psr 19 19 50.663 +00 21 39.80           ~ 87 0
44 PSR B1935+25 Psr 19 37 01.2659 +25 44 13.680           ~ 44 0
45 PSR B2003-08 Psr 20 06 16.367 -08 07 01.90           ~ 65 0
46 PSR J2010-1323 Psr 20 10 45.9196 -13 23 56.027           ~ 42 0
47 PSR B2043-04 Psr 20 46 00.157 -04 21 26.00           ~ 57 0
48 PSR B2044+15 Psr 20 46 39.349 +15 40 33.61           ~ 84 0
49 PSR B2110+27 Psr 21 13 04.3895 +27 54 02.290           ~ 88 0
50 PSR B2111+46 Psr 21 13 24.2 +46 44 09           ~ 182 1
51 PSR B2145-07.8 Psr 21 45 50.47 -07 50 18.3           ~ 212 0
52 PSR B2148+63 Psr 21 49 58.59 +63 29 43.5           ~ 77 0
53 PSR B2148+52 Psr 21 50 37.7331 +52 47 49.625           ~ 33 0
54 PSR B2210+29 Psr 22 12 23.348 +29 33 05.69           ~ 38 0
55 PSR B2223+65 Psr 22 25 52.36 +65 35 33.8           ~ 278 0
56 PSR J2248-0101 Psr 22 48 26.904 -01 01 48.10           ~ 20 0
57 PSR B2303+30 Psr 23 05 58.324 +31 00 01.76           ~ 174 0
58 PSR J2317+1439 Psr 23 17 09.230 +14 39 31.18           ~ 138 1
59 PSR B2315+21 Psr 23 17 57.828 +21 49 48.03           ~ 81 0
60 PSR B2323+63 Psr 23 25 13.32 +63 16 52.3           ~ 45 0
61 PSR J2347-0612 Psr 23 46 50.454 -06 09 59.50           ~ 35 0
62 PSR B2351+61 Psr 23 54 04.724 +61 55 46.79           ~ 87 0

    Equat.    Gal    SGal    Ecl

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2019.12.06-06:25:32

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