1
Target list for INTAS 99-1183 project (Kharkov / UTR-2 & PRAO / BSA-DKR)
General Notes :
5 tables are given, for Calibration Radiosources, Nearby Stars, Pulsars, Exoplanets, and Brown Dwarves. In addition, Saturn and Venus could be observed for
lightning radio search. Only the general characteristics of the sources and selection criteria are listed. Please send your comments so that we converge on a
definitive list and generate ephemeris, which will be used througout the INTAS project duration.
At UTR-2, with the Acousto-Optical Spectrograph (AOS), available integration times are : 5.16, 9.3, 17.4, 33.8 msec / spectrum + integer multiples. Note
that for pulsars the integration time should not be larger than about half the Pulse duration.
Source transit should be around 22h00 to 05h00 Local Time for good quality of observations (lower interference level).
Observations will be performed at UTR-2 following 2 modes:
• NS array only, ON & OFF beam simultaneously on the sky.
• Interferometric mode, i.e. EW x NS, using the switching interface.
Source tracking is done with 2 minutes step. High-pass filters at 12, 15, 18, 20, 22 MHz, and low-pass filters at 30 and 32 MHz are available.
Acquisition sequences should consist of ~10000 consecutive spectra, i.e. a few minutes.
2
Exoplanets (candidates from Extrasolar Planets Encyclopedia : http://www.obspm.fr/planets/ )
Main selection criteria :
• Hot / warm Jupiter (semi-major axis ≤ ~0.2 AU, except 70 Vir considered as a good candidate by Farrell et al. [1999] and HD 114762 because type F
-> possible strong stellar wind)
• Distance to Sun ≤ 20 parsecs (except HD 114762 because type F -> possible strong stellar wind)
Parent Star
Spectral type
Planet’s semi-maj.
axis (AU)
0.05
Orbital Period
(days)
4.23
M. [sin(i)]
(Mj)
0.47
Comments
G2.5IVa
Distance from the
Sun (pc)
15.4
51 Peg
(HD 217014)
Ups Andromeda
(HD 9826)
HD 192263
55 Cnc
(HD 75732)
Rho CrB
(HD 143761)
F7V / F8V
13.5
0.059
4.62
0.71
2 more planets
(0.83 & 2.5 AU)
K2V
G8V
19.9
12.5
0.15
0.11
23.87
14.65
0.76
0.84
G0Va / G2V
17.4
0.23
39.65
1.1
HD 217107
Gliese 876
(GJ 876 - IL Aqr)
Gl 86
Tau Bootes
(HD 120136)
G8IV
M4V
19.7
4.7
0.07
0.21
7.11
60.85
1.28
2.1
K1V
F6IV
10.9
15.6
0.11
0.046
15.78
3.31
4.
3.87
70 Vir
(HD 117176)
HD 114762
G4V
18.1
0.43
116.6
6.6
F9V
40.6
0.3
84.
11
$
2nd planet ?
(> 4 AU) $
High radio flux
expected ?
(Farrell & al.) $
e ~0.14
Very close, but -14°
decl.
High radio flux
expected ?
(Farrell & al.) $
High B & radio flux
?
Far but F type ->
strong wind ?
e = 0.334 $
3
Lalande 21185
(HD 117176)
$ Observed at UTR-2
M2
2 - 2.5?
-
5.8 & 30 ? years
0.9 & 1.6
2 unconfirmed
planets
$
4
Brown dwarves
Selection criteria = same as above.
Parent Star
Spectral type
HD 162020
K2V
HD 283750
K2
Gliese 229
M1V / M2V
(GJ 229)
$ Observed at UTR-2
Distance from the
Sun (pc)
16.3
16.5
6.7
Planet’s semi-maj.
axis (AU)
0.072
0.04
40
Orbital Period
(days)
8.43
1.79
200 years...
M. [sin(i)]
(Mj)
13.73
50
40
Comments
e =0.28
-22° decl.
->unfavourable
$
5
Pulsars (from 2nd Cambridge pulsar search catalog, + complements)
Main selection criteria :
• Long period (≥ 500 msec)
• DM < 20-25 pc.cm-3
• Intense for easier detection ; Weak for test of detection algorithm
Pulsar name
Period (msec) DM
(pc.cm-3)
~Pulse duration
msec & %period
(from HF meas.)
21 (3%)
34 (10%)
13 (7%)
119 (10%)
21 (4%)
Comments /
previous observations
27
15
8
5.8
19
~ Flux at 81.5 ~ S/N (estimate
MHz (mJy)
for single pulse
detection)
910-930
2
110
0.4
110-170
0.3
160-440
2
330-490
2.2
PSR 0329+54
PSR 0450+55
PSR 0655+64
PSR 0809+74
PSR 0823+26
(gal 197.0+31.7)
PSR 0834+06
PSR 0919+06
PSR 0943+10
PSR 0950+08
(gal 228.9+43.7)
PSR 1133+16
PSR 1237+25
PSR 1508+55
PSR 1541+09
PSR 1642-03
PSR 1839+56
PSR 1919+21
PSR 2016+28
PSR 2110+27
PSR 2217+47
PSR 2224+65
PSR 0531+21
Crab. (CM Tau)
715
341
196
1192
531
1274
431
1098
253
13
27
15
3
1020-1070
440-490
320-450
1500
4.5
1
1.9
0.7
38
17
55
25
$
$
$ detected at 33 msec
$ detected at 5 & 17 msec
1188
1382
740
748
388
1653
1337
558
1203
539
683
33 ?
5
9
20
35
36
26
12
14
25
44
6
?
660-670
90
560-630
290
570
110
1630-1860
400
90
1520-2000
140-180
?
2.2
1
2.9
0.8
0.8
0.9
2.5
0.7
0.8
2.1
0.6
?
35 (3%)
110 (8%)
30 (4%)
75 (10%)
16 (4%)
33 (2%)
40 (3%)
11 (2%)
36 (3%)
22 (4%)
34 (5%)
?
(3%)
(4%)
(5%)
(10%)
$
$ detected at 5 & 33 msec
$
$ detected at 9 msec
$
$
$
$
$
$
$
$ not (yet) detected at 5 & 67
msec
6
PSR J0633+1746 237
?
5 - 500 (at
?
(Geminga)
102.5 MHz)
PSR 0459+47
?
?
?
?
$ Observed at UTR-2 ≥1997 (~1 Jy sensitivity with 30 msec integration at zenith ?)
?
$ not (yet) detected at 5 msec
?
(=SNR G 160.5+2.8 ?)
7
Nearby stars (from catalogs by Lang [Astrophysical Data] and Zombeck [Handbook of space astronomy and astrophysics])
Main selection criteria :
• Single stars (?)
• Closer than 5 pc
• Northern hemisphere (with exceptions)
Star name
Wolf 359
BD +36°2147
Distance (pc)
2.4
2.5
~dec (°)
+7.3
+36.3
Spectral type
dM8e
M2V
Ross 248
eps Eri
3.2
3.3
+44
-9.6
dM6e
K2V
Ross 128
3.3
+1.1
dM5
+27
+5.4
+5.1
+12.8
+49.7
+68.4
+20.1
+44.1
+8.7
+79
+15.2
?
dM5
dG
dM8e
K7V
M3.5V
M4.5Ve
dM5e
A7 IV-V
sdM4
M4V
G 51 -15
3.6
BD +5°1668
3.8
Van Maanen
4.3
L 1159 - 16
4.5
BD +50°1725
4.5
BD +68°946
4.7
BD +20°2465
4.8
BD +43°4305
5
Altair
5
AC +79°3888
5.1
BD +15°2620
5.2
$ Observed at UTR-2
Comments
$
= Lalande
21185 (see
exoplanets)
slight IR excess
$
$
IR excess
circumstellar
disk ? $
circumstellar
disk ? $
= Lacaille 9352
double star ?
IR excess
IR excess $
$
double star ?
$
IR excess $
IR excess
$
8
Solar System planets (for detection of atmospheric lightning radio emission & test of exoplanet search method)
• Saturn
• Venus
Calibration Radiosources (calibration - from [Kraus, 1966; Braude et al., 1970; Baars et al., 1977])
So
ur
ce
na
m
e
de
c
(°)
(1
95
0)
R.
A
(1
95
0)
Fl
ux
@
12
.6
M
Hz
(Jy
)
+2 05 53
1° 31 00
58
’
Fl
ux
@
16
.7
M
Hz
(Jy
)
38
00
Fl
ux
@
25
M
Hz
(Jy
)
Ta
34
ur
00
us
(3
C
14
4)
Hy - 09 39 30 22
dr 11 16 00 00 00
a °
(3 53
C ’
21
8)
9
Vi +1 12 91 78 53
rg 2° 28 00 00 00
o 40
A ’
(3
C
27
4)
3C 348
+5° 03’
Cygnus (3C 405)
+40°36’
Ca +5 23 58 65 58
ssi 8° 21 50 00 00
op 33
0 0
0
ea ’
(3
C
46
1)
16 48
19 58
6400
21900
4200
26600
2300
31500
33500 Jy @ 23 MHz
25500 Jy @ 38 MHz