IXPE Cycle 2 Recommended Targets
Recommended Targets sorted by proposal number, click here to sort by RA.
Definition of Columns
- Prop: Proposal number assigned by the IXPE mission.
- Target: Target name as listed on proposal forms, in some cases modified for clarity.
- Category: L indicates a Large Program. Categories A or C were assigned during the Cycle 1 peer review. ToO targets are indicated as T and are also category A for regular programs. If the category letter is not capitalized, e.g., "t" this indicates alternative targets, i.e. no additional time is granted. Category A targets are guaranteed to be observed. The IXPE project expects to be able to observe ~50% of Category C targets.
- ToO Response: ToO Response Priority for a trigger.
- PI: Principal Investigator's name.
- RA: Right Ascension (equinox J2000) in degrees.
- Dec: Declination (equinox J2000) in degrees.
- Exclusive Use: Exclusive use period, if granted, in months
- IXPE Time: Total IXPE observing time recommended in ksec.
- NICER: Approved NICER exposure time (in ksec) through IXPE review.
- NuSTAR: Approved NuSTAR exposure time (in ksec) through IXPE review.
- Swift: Approved Swift exposure time (in ksec) through IXPE review.
| Prop |
Target |
Category |
ToO Response |
PI |
RA |
DEC |
Exclusive Use |
IXPE Time [ks] |
NICER |
NuSTAR |
Swift |
| 2003 |
MCG-5-23-16 |
A |
|
FREDERIC MARIN |
146.91733 |
-30.94872 |
|
510 |
0 |
0 |
0 |
| 2006 |
1ES 1959+650 |
T |
HIGH |
LAURA DI GESU |
299.99938 |
65.14853 |
3 |
200 |
0 |
0 |
0 |
| 2006 |
MRK 501 |
t |
HIGH |
LAURA DI GESU |
253.46758 |
39.76017 |
3 |
0 |
0 |
0 |
0 |
| 2006 |
1ES 0033+595 |
t |
HIGH |
LAURA DI GESU |
8.96896 |
59.8345 |
3 |
0 |
0 |
0 |
0 |
| 2006 |
1ES 1011+496 |
t |
HIGH |
LAURA DI GESU |
153.76725 |
49.43353 |
3 |
0 |
0 |
0 |
0 |
| 2006 |
MRK 421 |
t |
HIGH |
LAURA DI GESU |
166.11379 |
38.20883 |
3 |
0 |
0 |
0 |
0 |
| 2006 |
1ES 1218+304 |
t |
HIGH |
LAURA DI GESU |
185.34142 |
30.177 |
3 |
0 |
0 |
0 |
0 |
| 2013 |
CRAB PULSAR |
C |
|
ROGER ROMANI |
83.63312 |
22.0145 |
|
900 |
0 |
0 |
0 |
| 2014 |
THE LIGHTHOUSE NEBULA |
A |
|
ROGER ROMANI |
165.38375 |
-61.00519 |
|
1000 |
0 |
0 |
0 |
| 2017 |
GRS 1915+105 |
T |
MEDIUM |
KARRI KOLJONEN |
288.79817 |
10.94581 |
|
100 |
0 |
0 |
0 |
| 2022 |
SS 433 WEST |
A |
|
PHILIP KAARET |
287.67204 |
5.03247 |
6 |
1000 |
0 |
0 |
0 |
| 2030 |
GX 1+4 |
C |
|
ALEXANDER SALGANIK |
263.00896 |
-24.74558 |
6 |
400 |
0 |
0 |
0 |
| 2036 |
LSP/ISP BLAZAR |
T |
MEDIUM |
SVETLANA JORSTAD |
0 |
0 |
|
900 |
0 |
20 |
14 |
| 2037 |
NGC 5506 |
A |
|
DANIELE TAGLIACOZZO |
213.31208 |
-3.2075 |
|
1000 |
0 |
50 |
0 |
| 2041 |
1A 0535+262 |
T |
MEDIUM |
SERGEY TSYGANKOV |
84.72737 |
26.31578 |
6 |
400 |
0 |
0 |
0 |
| 2067 |
PG 1553+113 |
A |
|
RICCARDO MIDDEI |
238.92933 |
11.19011 |
|
360 |
0 |
0 |
0 |
| 2081 |
4U 1812-12 |
A |
|
ANTONELLA TARANA |
273.77562 |
-12.09631 |
|
650 |
0 |
0 |
0 |
| 2093 |
UW CRB |
C |
|
THOMAS MACCARONE |
241.44112 |
25.86258 |
|
500 |
0 |
0 |
0 |
| 2095 |
1ES 1927+654 |
C |
|
DHEERAJ PASHAM |
291.83142 |
65.565 |
|
800 |
0 |
0 |
0 |
| 2098 |
4U 1630-47 |
T |
MEDIUM |
JAMES STEINER |
248.50671 |
-47.393 |
2 |
300 |
7 |
0 |
0 |
| 2102 |
SWIFT J0243.6+6124 |
T |
MEDIUM |
HONGHUI LIU |
40.91846 |
61.43439 |
|
300 |
0 |
0 |
0 |
| 2103 |
KES 75 |
A |
|
JOSEPHINE WONG |
281.60392 |
-2.97503 |
|
500 |
0 |
0 |
0 |
| 2111 |
CIR X-1 |
A |
|
FABIO LA MONACA |
230.17021 |
-57.16672 |
3 |
350 |
0 |
0 |
0 |
| 2111 |
CIR X-1 |
A |
|
FABIO LA MONACA |
230.17021 |
-57.16672 |
3 |
150 |
0 |
0 |
0 |
| 2114 |
RX J1713.7-3946 |
C |
|
RICCARDO FERRAZZOLI |
257.96304 |
-39.95211 |
|
1000 |
0 |
0 |
0 |
| 2121 |
4U 0614+091 |
A |
|
ALESSANDRO DI MARCO |
94.28067 |
9.13708 |
3 |
150 |
10 |
20 |
0 |
| 2138 |
ACCRETING MSP |
T |
MEDIUM |
ALESSANDRO PAPITTO |
0 |
0 |
6 |
900 |
0 |
0 |
0 |
| 2142 |
SS 433 |
A |
|
PAOLO SOFFITTA |
287.9565 |
4.98272 |
|
500 |
10 |
30 |
0 |
| 2147 |
GX 13+1 |
A |
|
ALESSANDRO DI MARCO |
273.63146 |
-17.15742 |
|
150 |
0 |
0 |
0 |
| 2151 |
H 1743-322 |
T |
MEDIUM |
JAMES STEINER |
266.565 |
-32.23358 |
2 |
200 |
5 |
20 |
0 |
| 2151 |
H 1743-322 |
T |
LOW |
JAMES STEINER |
266.565 |
-32.23358 |
2 |
120 |
5 |
20 |
0 |
| 2152 |
NGC 3227 |
C |
|
SUDIP CHAKRABORTY |
155.87742 |
19.86508 |
|
800 |
0 |
0 |
0 |
| 2153 |
T CRB |
T |
HIGH |
MANEL ERRANDO |
239.87567 |
25.92017 |
6 |
500 |
0 |
0 |
0 |
| 2154 |
4U 1822-37 |
A |
|
ALESSIO ANITRA |
276.44508 |
-37.10514 |
|
500 |
50 |
80 |
0 |
| 2156 |
AQL X-1 |
T |
MEDIUM |
YASH BHARGAVA |
287.81692 |
0.58497 |
|
300 |
8 |
20 |
0 |
| 2156 |
AQL X-1 |
T |
MEDIUM |
YASH BHARGAVA |
287.81692 |
0.58497 |
|
100 |
2 |
20 |
0 |
| 2157 |
4U 1700-377 |
A |
|
KAITO NINOYU |
255.98654 |
-37.84414 |
|
150 |
0 |
0 |
0 |
| 2158 |
PERSEUS CLUSTER |
L |
|
STEVEN EHLERT |
49.94671 |
41.51311 |
|
2500 |
0 |
0 |
0 |
| 2162 |
EXO 0748-676 |
C |
|
SAYANTAN BHATTACHARYA |
117.14046 |
-67.75214 |
|
260 |
0 |
0 |
0 |
| 2176 |
CANDIDATE NU BLAZAR |
T |
MEDIUM |
QI FENG |
0 |
0 |
|
200 |
0 |
0 |
0 |
| 2184 |
GRS 1915+105 |
A |
|
AJAY RATHEESH |
288.79817 |
10.94581 |
|
150 |
15 |
30 |
0 |
| 2186 |
FAIRALL 51 |
C |
|
ROMANA MIKUSINCOVA |
281.22496 |
-62.36469 |
|
1000 |
0 |
0 |
0 |
| 2189 |
RELATIVISTIC_TDE |
T |
MEDIUM |
DHEERAJ PASHAM |
0 |
0 |
|
150 |
45 |
0 |
0 |
| 2190 |
MRK 421 |
T |
MEDIUM |
OLIVIER HERVET |
166.11375 |
38.20883 |
|
150 |
0 |
0 |
28 |
| 2191 |
4U 1630-47 |
T |
MEDIUM |
MAXIME PARRA |
248.50671 |
-47.393 |
|
165 |
15 |
20 |
0 |
| 2191 |
H 1743-322 |
t |
MEDIUM |
MAXIME PARRA |
266.56496 |
-32.23356 |
|
0 |
0 |
0 |
0 |
| 2191 |
GRO J1655-40 |
t |
MEDIUM |
MAXIME PARRA |
253.50054 |
-39.84556 |
|
0 |
0 |
0 |
0 |
| 2191 |
IGR J17091-3624 |
t |
MEDIUM |
MAXIME PARRA |
257.28171 |
-36.40714 |
|
0 |
0 |
0 |
0 |
| 2191 |
WIND EMITTING BHLMXB |
t |
MEDIUM |
MAXIME PARRA |
0 |
0 |
|
0 |
0 |
0 |
0 |
| 2211 |
AT 2019WEY |
C |
|
SUDIP CHAKRABORTY |
68.847 |
55.37617 |
|
210 |
0 |
0 |
0 |
| 2219 |
1E 1547.0-5408 |
C |
|
GEORGE YOUNES |
237.7255 |
-54.30669 |
6 |
1000 |
0 |
0 |
0 |
| 2226 |
EX HYDRAE |
A |
|
SEAN GUNDERSON |
193.10092 |
-29.24889 |
|
300 |
0 |
0 |
0 |
| 2239 |
GS 1826-24 |
T |
LOW |
MASON NG |
277.3675 |
-23.79689 |
|
630 |
0 |
0 |
0 |
|
