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May 6, 2008: Here is Nancay's current requestfor telescope time for the GLAST LAT pulsar timing campaign. 

March 9, 2008: Update of the "pulsar timing MoU", now called LAT-0947-01

March 4, 2008Here is version 3 of the "GLAST LAT Memo of Understanding of a  Pulsar Timing Consortium" which was circulated to the people listed on page 6 of the document on February 23rd. Here is Changes3to4.txt which is some modifications that were suggested by LAT leadership in a telecon a few days after that. Since then there has been considerable discussion resulting in a finite list of changes likely to be made in the next week or so: to cite two -- Mallory Roberts lead a series of e-mail exchanges ; and Scott Ransom lead a discussion of the topic at the Glast User's Group meeting yesterday. Several pulsar PI's have agreed to sign the document in more or less its present form.

A little background -- without going back to 2001 or 2002 when the LAT team and pulsar scientists laid the groundwork for all this, and without going back to a splinter session on the topic held at the IAU general assembly in Prague in the summer of 2006, I'll just say that on February 6th I (= David Smith) circulated a draft of an A&A article called "Pulsar Timing for the GLAST LAT". It describes the science motivation for gamma ray pulsars and the need for a sustained timing campaign to achieve that science. It lists 231 gamma pulsar candidates (Edot > 1E34 erg/s) that Simon Johnston has argued should be 225. About half of the article is tests of the LAT pulsar "Science Tools" software applied to various data sets. We (= a few senior LAT and pulsar people) built an author list of pulsar timers and LAT people. We suggested that agreeing to sign the A&A would amount to committing to the "timing consortium" the rules of which were only roughly described. By wide acclaim, we quickly separated that particular paper from the consortium constitution, and the MoU was born. Achieving consensus on its contents took the rest of February and has bled into March.

 I'm uneasy about posting a multi-author draft of an A&A on a public web site while corrections are still in progress. Contact me if you want to see it (me = smith@cenbg.in2p3.fr).

January 2008: VERITAS held a collaboration meeting in Tuscon last month. They asked John Millis of Purdue University to be the point-of-contact to the LAT collaboration for timing ephemerides. John is a graduate student working with John Finley. The e-mail address is john.millis@gmail.com . Millis and Bordeaux have begun exchanging file formats and a few selected timing solutions.

May 25, 2007: Marcos Moya Lopez visited Bordeaux these last few weeks. With Damien, he wrote a note discussing which known pulsars are really the best candidates, which you can find here.

February 6, 2007: While at Stanford for the 1st GLAST Symposium, a meeting was held. Romani recapitulated needs and tactics.  Lyne showed slides summarzing Jodrell observations for GLAST. Johnston spoke of Parkes observations (his rough notes here). Smith spoke of Nancay observations (see slides, Feb 2, below). Ransom and others intend to request GBT and/or Arecibo time for the radio-faint but gamma-likely targets. McLaughlin will use the 140' telescope to time noisier, louder gamma candidates. The consensus was that the timing needs for GLAST are on track for being met, even if much work remains to be done. (Attendees: Andrew Lyne, Simon Johnston, Scott Ransom, Maura McLaughlin, Mallory Roberts, Jim Cordes, Alberto Carramiñana, Roger Romani, Dave Thompson, Steve Thorsett, Peter Michelson, Steve Ritz, Denis Dumora, David Smith.)

February 21, 2007: Abstract for Kes 75 pulsar timing proposal with RXTE

February 21, 2007: Abstract for LMC pulsar timing proposal with RXTE

February 3, 2007: Here are two abstracts of RXTE proposals submitted by Livingstone & Kaspi of McGill University. 

February 2, 2007: (Lucas Guillemot)  GLAST pulsars.pdfThese slides summarize the current status of radio timing for GLAST in the northern and  southern skies. It also deals with the problem of the distribution of pulsar observations.

Pulsars of Greatest Interest to the LAT Collaboration

Spreadsheet with this list

fvel - Ranked by "expected gamma-ray flux" normalized to Vela
srad - radio flux
time req - estimated radio time for timing detection
visits per y - estimated number of observations per year to maintain timing
time per y - total radio telescope hours estimated per year
G - time with gamma rays
X - time with X-rays
M - ms pulsar of special interest. (0.001) in time per y - ms pulsar
Must-do PSR - Edot > 3E34
Worthwhile PSR - 3E34 > Edot > 1E34

#

i

name

fvel

srad

log(edot)

time req

visits per y

time per y










#

Must-Do PSR







#









 

1

B0833-45

1

1100

36.84

1.26E-07

27.23

2.269

G

2

J0633+1746

0.2237

0.0187

34.51

7499

3.269

0.000

 

3

B0531+21

0.1717

14

*

0.007653

47.77

3.980

 

4

B0656+14

0.07422

3.7

34.58

0.006941

3.119

0.260

X

5

J0205+6449

0.01625

0.04

37.43

5.109

10.1

51.620


6

J1747-2958

0.01253

0.25

36.4

0.8353

4.458

3.724

 

7

B1706-44

0.01116

7.3

36.53

0.0004929

4.943

0.412

 

8

B1055-52

0.0107

6.504

34.48

0.001062

1.042

0.087


9

J1833-1034

0.0101

0.07

37.53

1.594

9.121

14.540


10

J1740+1000

0.009987

9.2

35.37

0.001383

2.022

0.169

 

11

B1951+32

0.009855

1

36.57

0.1941

2.959

0.574


12

J1357-6429

0.009241

0.44

36.49

0.4119

5.779

2.380


13

J1524-5625

0.007306

0.83

36.51

0.4488

3.631

1.629

 

14

B1509-58

0.007017

0.94

37.25

0.1115

10.06

1.121


15

J1531-5610

0.006993

0.6

35.96

0.0744

2.243

0.187

 

16

B1046-58

0.006076

6.5

36.3

0.0001565

3.612

0.301


17

B0355+54

0.005614

23

34.66

1.93E-06

0.8767

0.083


18

J0940-5428

0.005072

0.35

36.29

0.08507

2.787

0.237


19

J0538+2817

0.004762

1.9

34.69

0.0001037

0.8187

0.083

X

20

J1930+1852

0.004437

0.06

37.06

19.02

6.908

131.400

X

21

J1124-5916

0.003804

0.08

37.08

6.965

6.599

45.960


22

B1259-63

0.003725

1.7

35.92

1.687

1.296

2.185


23

J0834-4159

0.003656

0.19

34.99

0.1303

0.9043

0.130


24

B0906-49

0.003502

10

35.69

7.40E-06

1.585

0.132


25

J1509-5850

0.003489

0.15

35.71

0.2683

1.461

0.392


26

B1823-13

0.003469

2.1

36.45

0.001722

3.095

0.258


27

J1809-1917

0.003409

2.5

36.25

0.06579

2.289

0.191


28

J1420-6048

0.003195

0.9

37.02

0.1173

4.089

0.480


29

B1800-21

0.003155

7.6

36.35

0.0007363

3.147

0.262


30

B0114+58

0.00302

0.3

35.34

0.02597

1.066

0.089


31

J2229+6114

0.002857

0.25

37.35

0.2492

4.628

1.153


32

J1718-3825

0.002817

1.3

36.1

0.002783

1.768

0.147


33

B1727-33

0.002799

3.2

36.09

0.0007512

2.448

0.204


34

B0740-28

0.002796

15

35.16

4.95E-06

1.138

0.095

X

/R?      35

J1617-5055

0.002754

0.0187

37.2

53.97

4.668

0.000


36

J1843-1113

0.002746

0.1

34.78

7.993

0.07262

(0.001)

M

37

B1937+21

0.002591

10

36.04

2.01E-05

0.2075

(0.001)


38

J1913+1011

0.002407

0.5

36.46

0.02344

1.604

0.134


39

J2043+2740

0.002339

0.0187

34.75

83.79

0.5636

0.000


40

J1740-5340

0.002265

0.0187

35.13

83.79

0.1403

(0.001)


41

J0855-4644

0.002231

0.2

36.03

1.142

1.473

1.681

 

42

J0218+4232

0.0022

0.9

35.39

0.03617

0.1391

(0.001)


43

J1739-3023

0.002071

1

35.48

0.004445

1.207

0.101


44

B1957+20

0.002066

0.4

35.2

0.001892

0.09681

(0.001)


45

J1105-6107

0.002041

0.75

36.39

0.02283

2.041

0.170

M

46

B1821-24

0.001978

0.18

36.35

0.1071

0.3909

(0.001)


47

B1853+01

0.001928

0.19

35.63

0.002328

2.187

0.182


48

B1757-24

0.001895

0.85

36.41

0.0184

2.99

0.249


49

B0611+22

0.001843

2.2

34.8

5.29E-05

1.141

0.095


50

B1719-37

0.0017

3.2

34.51

1.39E-05

0.7312

0.083


51

J1835-1106

0.001696

2.2

35.25

0.0001376

1.193

0.099


52

B0540+23

0.001528

9

34.61

5.79E-06

0.8171

0.083


53

J0729-1448

0.001367

0.7

35.45

0.007327

1.785

0.149


54

B1737-30

0.00123

6.4

34.92

4.50E-07

1.749

0.146


55

J1928+1746

0.001188

0.25

36.21

0.05675

1.796

0.150


56

J1015-5719

0.001139

0.9

35.92

1.286

2.013

2.589


57

B1830-08

0.001123

3.6

35.77

0.0004287

1.345

0.112


58

J1837-0604

0.001102

0.7

36.3

0.1471

2.346

0.345


59

J1637-4642

0.0009926

0.78

35.81

0.06474

1.911

0.159


60

J0631+1036

0.0009802

0.8

35.24

0.04578

1.585

0.132


61

J1702-4310

0.000962

0.72

35.8

0.01664

2.417

0.201


62

J1301-6305

0.0009441

0.46

36.23

0.4837

3.094

1.497


63

J1828-1101

0.0009214

2.9

36.19

0.009036

1.822

0.152


64

B1634-45

0.0008782

1.1

34.88

0.000732

0.7073

0.083


65

J1702-4128

0.0008275

1.1

35.53

0.01352

1.627

0.136


66

J1705-3950

0.0008196

1.5

34.87

0.0002213

1.188

0.099


67

J1016-5857

0.0008067

0.46

36.41

0.05306

2.752

0.229


68

J0901-4624

0.0008053

0.46

34.6

0.0002127

1.107

0.092


69

B2334+61

0.0008035

1.4

34.79

0.000375

1.405

0.117

X

70

J1811-1925

0.0008005

0.0187

36.81

83.79

3.026

0.000


71

J1841-0345

0.0007374

1.4

35.43

0.001508

1.571

0.131


72

J1857+0143

0.0006497

0.74

35.65

0.07584

1.579

0.132


73

B1001-47

0.000646

0.4878

34.48

0.00566

0.8143

0.083


74

B1610-50

0.0006425

2.4

36.2

0.0005443

3.402

0.284


75

B1828-11

0.0006008

1.4

34.55

7.37E-06

1.009

0.084


76

J1648-4611

0.0005965

0.58

35.32

0.03353

1.267

0.106


77

B1643-43

0.0005731

0.98

35.55

0.005395

1.886

0.157


78

J1906+0746

0.0005706

0.55

35.43

7.00E-06

1.303

0.109


79

B0021-72F

0.00052

0.0187

35.15

579.7

0.1193

(0.001)


80

J1738-2955

0.0005086

0.29

34.57

0.0512

1.076

0.090


81

J1723-3659

0.0004981

1.5

34.58

0.0007417

0.7157

0.083


82

J1715-3903

0.0004979

0.46

34.84

0.003937

1.076

0.090


83

J1601-5335

0.0004891

0.22

35.01

0.01022

1.285

0.107


84

J1514-5925

0.0004862

0.27

34.54

0.01349

0.5844

0.083

M

85

B1820-30A

0.0004674

0.72

35.92

0.05651

0.357

(0.001)


86

J1828-1057

0.0004601

0.23

34.74

0.1251

0.9187

0.125


87

J1910-5959D

0.0004564

0.07

34.71

5.979

0.1542

(0.001)


88

J1112-6103

0.0004534

1.4

36.66

0.07257

2.64

0.220


89

B1356-60

0.0004166

7.6

35.08

1.45E-05

0.8878

0.083


90

B0021-72E

0.0004123

0.0187

34.94

1382

0.1158

(0.001)


91

B1915+13

0.0003972

1.9

34.59

7.05E-05

0.7047

0.083


92

J1838-0549

0.0003955

0.29

35

0.009171

1.147

0.096


93

J1548-5607

0.0003952

1

34.93

0.002475

0.9002

0.083


94

J2021+3651

0.0003846

0.1

36.53

2.548

3.012

7.673


95

J1638-4608

0.0003659

0.33

34.98

0.005708

1.22

0.102


96

J1841-0524

0.0003591

0.2

35.02

0.01817

1.631

0.136


97

J0024-7204O

0.0003543

0.0187

34.81

83.79

0.08788

(0.001)


98

B1754-24

0.0003308

3.9

34.6

0.0005067

0.7867

0.083


99

J1452-5851

0.000324

0.24

34.54

0.01171

0.9733

0.083


100

J1541-5535

0.0003223

0.22

35.06

0.06415

1.36

0.113


101

B1607-52

0.000312

1.2

34.53

3.56E-05

0.6444

0.083


102

B1338-62

0.0003064

1.9

36.14

0.00194

2.935

0.245


103

J1907+0918

0.0002985

0.29

35.51

0.002567

1.783

0.149


104

J0024-7204U

0.0002981

0.0187

34.66

83.79

0.09962

(0.001)


105

J1016-5819

0.000291

0.31

34.61

0.03333

0.4712

0.083

X

106

J0537-6910

0.0002905

0.0187

*

83.79

8.146

0.000


107

B1930+22

0.0002887

1.2

35.88

0.00125

1.973

0.164


108

J1853-0004

0.000287

0.87

35.32

0.0004113

0.9817

0.083


109

J1019-5749

0.0002821

0.8

35.27

0.9088

1.198

1.089


110

J1543-5459

0.0002665

0.62

34.58

0.004796

0.9996

0.083


111

J1737-3137

0.0002602

0.8

34.78

0.002209

1.315

0.110


112

J1815-1738

0.0002571

0.25

35.59

1.463

1.802

2.636

X

113

J1846-0258

0.0002552

0.0187

36.92

83.79

7.895

0.000


114

B1822-14

0.0002532

2.6

34.61

0.0003441

0.8769

0.083


115

B1821-19

0.0002468

4.9

34.48

4.39E-06

0.6317

0.083


116

J1853+0056

0.0002424

0.21

34.61

0.004998

0.8639

0.083


117

J1413-6141

0.000233

0.61

35.75

0.1712

2.526

0.432


118

J1756-2225

0.0002301

0.25

34.5

0.04841

0.9584

0.083


119

J1406-6121

0.0002261

0.36

35.35

0.09571

1.492

0.143


120

B1718-35

0.0002151

11

34.65

0.000193

0.9116

0.083


121

B1508-57

0.0002137

6

35.1

0.0001812

0.91

0.083


122

B1832-06

0.0001965

1.3

34.75

0.01986

1.04

0.087


123

B1838-04

0.000196

2.6

34.59

0.0001

0.6922

0.083


124

J1538-5551

0.0001913

0.25

35.04

0.544

0.7713

0.544


125

J1138-6207

0.0001883

0.49

35.48

0.1298

1.229

0.160


126

J1156-5707

0.000186

0.19

34.64

0.003741

0.9129

0.083


127

J1734-3333

0.0001816

0.5

34.75

0.3242

2.132

0.691


128

J1412-6145

0.0001814

0.47

35.09

0.007317

1.455

0.121


129

J1743-3153

0.0001776

0.5

34.76

0.02348

0.8269

0.083


130

J1632-4757

0.0001759

0.3

34.7

0.2525

0.8513

0.253


131

J1909+0912

0.0001721

0.35

35.11

0.02158

1.222

0.102


132

J1638-4417

0.0001661

0.21

34.59

0.07137

0.5411

0.083


133

J1119-6127

0.0001653

0.8

36.37

0.009335

5.392

0.449

X

134

B0540-69

0.0001607

0.02

38.17

3346

9.28

0.000


135

J1052-5954

0.000159

0.15

35.13

0.2943

1.114

0.328


136

J1551-5310

0.0001524

0.54

34.92

0.2569

1.499

0.385


137

J1913+0832

0.0001406

0.6

34.87

15.3

0.752

15.300


138

J1838-0453

0.0001399

0.33

34.92

0.009977

1.368

0.114


139

J1248-6344

0.0001347

0.12

34.93

0.4506

0.9787

0.451


140

J1845-0316

0.000128

0.35

34.59

0.04617

0.7334

0.083


141

J1755-2534

0.0001175

0.17

34.54

0.2686

0.7447

0.269


142

J1839-0321

0.0001169

0.27

34.56

0.004648

0.7667

0.083


143

J1632-4818

0.0001162

0.39

34.68

0.02845

1.644

0.137


144

B2127+11E

0.000107

0.01626

34.84

563.9

0.1222

(0.001)


145

J1726-3530

8.41E-05

0.3

34.55

0.03959

1.718

0.143


146

J1904+0800

8.25E-05

0.36

34.57

0.009638

0.8179

0.083


147

J1820-1529

8.09E-05

0.61

34.61

0.0467

0.9566

0.083


148

J1908+0909

7.53E-05

0.22

34.56

0.005216

0.9195

0.083


149

J1806-2125

6.84E-05

1.1

34.63

0.003984

1.19

0.099


150

B1758-23

5.02E-05

2.2

34.79

0.05738

1.277

0.106


151

J1808-2024

3.73E-05

0.0187

34.6

83.79

4.981

0.000


152

J1327-6400

3.16E-05

0.36

34.75

0.02246

0.9922

0.083










#

Worthwile PSR 





















1

J0437-4715

0.179

142

34.08

0.000496

0.2795

(0.001)


2

B0743-53

0.05373

1.87

34.04

0.0399

1.244

0.104


3

J0034-0534

0.01902

0.61

34.47

46.38

0.1051

(0.001)


4

B1257+12

0.007444

2

34.27

0.02607

0.1212

(0.001)


5

J1909-3744

0.003655

0.0187

34.33

122.5

0.06804

(0.001)


6

J1046+0304

0.00302

0.3

34.15

0.1378

0.6611

0.138


7

J1911-1114

0.002357

0.5

34.07

0.1054

0.05252

(0.001)


8

J2129-5721

0.00219

1.4

34.2

0.008608

0.05996

(0.001)


9

J0857-4424

0.001372

0.88

34.42

0.001052

0.7979

0.083


10

J0613-0200

0.001249

1.4

34.12

0.09642

0.05021

(0.001)


11

B1449-64

0.00102

14

34.27

2.20E-06

0.5063

0.083


12

B1620-26

0.0009119

1.6

34.29

0.00156

0.1165

(0.001)


13

B1317-53

0.0007625

1.463

34.22

0.00032

0.6118

0.083


14

J1549-4848

0.0006812

0.47

34.37

0.001256

0.7095

0.083


15

B0136+57

0.0005594

4.6

34.32

9.63E-06

0.6599

0.083


16

B1730-37

0.0005002

3.4

34.19

1.57E-05

0.6548

0.083


17

J0905-5127

0.0004583

1.1

34.37

0.0004251

0.7883

0.083


18

B1221-63

0.0004477

3.9

34.29

4.31E-05

0.5652

0.083


19

B1727-47

0.0004284

12

34.05

2.85E-06

0.9355

0.083


20

B1535-56

0.0003727

4.6

34.12

6.54E-05

0.5186

0.083


21

J1210-5226

0.000342

0.0187

34.01

83.79

0.631

0.000


22

B1556-57

0.0002757

1.4

34.06

0.002706

0.4334

0.083


23

J0954-5430

0.0002609

0.36

34.21

0.0009021

0.8036

0.083


24

J1115-6052

0.0002375

0.38

34.21

0.001822

0.5824

0.083


25

J0024-7204T

0.0002284

0.0187

34.42

83.79

0.1078

(0.001)


26

J0024-7204Q

0.0001965

0.0187

34.31

83.79

0.06936

(0.001)


27

J1123-6259

0.0001748

0.56

34.02

0.001343

0.4977

0.083


28

J1650-4502

0.0001719

0.35

34.06

0.001684

0.6216

0.083


29

J1834-0731

0.0001599

1

34.23

0.00586

0.8519

0.083


30

B2148+52

0.0001573

2

34.04

0.0002732

0.5651

0.083


31

J1649-4653

0.0001547

0.31

34.06

0.01029

0.7571

0.083


32

J1843-0702

0.0001516

0.17

34.08

0.01496

0.4385

0.083


33

J1349-6130

0.0001414

0.58

34.06

0.00119

0.5083

0.083


34

J1837-0559

0.0001374

0.5

34.21

0.01766

0.5049

0.083


35

J1845-0743

0.000134

2.7

34.1

0.0003636

0.3242

0.083


36

J1839-0905

0.0001294

0.16

34.15

0.07645

0.7065

0.083


37

J1801-2154

0.0001244

0.18

34.08

0.01513

0.6262

0.083


38

J1853+0545

0.0001244

1.6

34.08

0.004859

0.3506

0.083


39

J1907+0731

0.0001199

0.35

34.18

0.006618

0.6761

0.083


40

B1557-50

0.0001183

17

34.45

2.23E-06

0.6164

0.083


41

J1452-6036

0.000117

1.4

34.19

0.0002974

0.4323

0.083


42

B1841-05

0.0001146

2.2

34.36

0.002483

0.6622

0.083


43

B2000+32

0.0001068

1.2

34.09

0.0003223

0.8795

0.083


44

J1907+0919

9.61E-05

0.0187

34.35

83.79

3.246

0.000


45

J1907+0345

9.50E-05

0.17

34.37

0.0183

0.646

0.083


46

J1842-0905

9.17E-05

0.81

34

0.000498

0.5601

0.083


47

J1946+2611

9.00E-05

0.122

34.02

1.97

0.6445

1.970


48

B1636-47

8.35E-05

1.2

34.08

0.001787

0.7435

0.083


49

B2011+38

7.66E-05

6.4

34.46

0.0006859

0.6844

0.083


50

B1855+02

7.46E-05

1.6

34.34

0.0004368

0.8459

0.083


51

J1903+0601

7.37E-05

0.26

34.16

0.0143

0.6749

0.083


52

J1515-5720

7.29E-05

0.2

34.01

0.9264

0.5097

0.926


53

J1853+0011

7.00E-05

0.3

34.32

0.008491

0.8091

0.083


54

J1626-4807

6.66E-05

0.37

34.43

1.561

0.7637

1.561


55

J1305-6203

5.59E-05

0.62

34.21

0.003988

0.758

0.083


56

B2127+11F

5.57E-05

0.00813

34.29

3475

0.06776

(0.001)


57

J1843-0355

5.51E-05

0.8

34.25

0.09204

0.4206

0.092


58

J1735-3258

5.41E-05

0.46

34.38

21.11

0.7962

21.110


59

J1043-6116

4.67E-05

0.91

34.23

0.0005048

0.6279

0.083


60

J1908+0839

4.57E-05

0.49

34.17

0.00254

0.4685

0.083


61

J1812-1910

3.51E-05

0.22

34.27

0.166

0.8043

0.166


62

J1524-5706

2.48E-05

0.41

34

0.001335

1.047

0.087


63

J1216-6223

1.33E-05

0.15

34.1

0.08397

0.6399

0.084










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