NEW GIANT STAR (GS) Eclipsing Binaries

     Combination of the Northern Sky Variability Survey(NSVS; Wozniak et al., 2004) and the Two Micron All Sky Survey(2MASS; Strutskie et al. 2006) allows for the search of cool algol systems.  Using the light curves provided by the NSVS and the color indices provided by 2MASS we have searched for cool systems with periods over two days having the correct light curve.  Using Eclipsing Light Curve (ELC; Orosz 2000), we have modeled each system to find whether one star has filled its Roche lobe, indicating a cool algol.  However, if the system did not fill its Roche lobe then we have classified it a Giant Star (GS) binary.

   

Below is a table with the 52 new giant star binaries we have found.  Linked to each star name is the NSVS page on that star. Also given is a light curve and model for each star.  Please note that the epochs are not derived from one time of minimum, but are rather from the aggregate phased light curve.  The periods are from the shape of this and not from several times of minimum.  Therefore, predictions at times of minimum at many epochs later than the original observations should be viewed with caution.

 

We hope that you find this site useful.  Thanks!

 

   

Nicole Kelley: nicole_kelley [at] berkeley.edu

University of California, Berkeley

Summer REU Intern at UGA

J. Scott Shaw: jss [at] physast.uga.edu

University of Georgia

Department of Physics and Astronomy

 

 

Link to Giant Star ELC Solutions

 

Link to paper on research

 

Star Name

LC

RA (2000)

DEC (2000)

Magnitude

Points

Epoch

Period

2MASS ID

Cross ID

NSVS****

link

deg

deg

 

 

HJD
2451000+

days

 

 

LC

351.182000

+68.811140

13.446

337

282.421

2.374569

05015631+6848281

 

01134199

LC

280.390228

+78.748230

13.143

221

274.168

8.56508

18413381+7844531

 

01285912

LC

280.390778

+78.748177

13.178

208

274.332

8.56156

18413381+7844531

 

01817114

LC

28.429440

+62.961910

11.138

105

335.355

2.12618

01534252+6257351

V*BZ Cas

01903339

LC

34.832439

+53.596748

12.438

129

370.358

55.43505

02191981+5335490

 

02048376

LC

55.680939

+66.968437

12.898

103

382.352

2.83889

03424333+6658075

 

02090150

LC

60.287891

+55.824291

12.130

284

382.352

6.36643

04010908+5549298

 

02441618

LC

128.439926

+57.098042

12.709

124

272.154

2.52390

08334561+5705534

 

02727033

LC

206.914612

+51.809799

12.316

112

464.112

4.66888

13473948+5148347

 

02815225

LC

238.295395

+54.151150

12.517

251

274.191

3.77222

15531105+5409064

 

03073937

LC

291.771576

+55.645561

12.609

288

274.350

4.28705

19270503+5538346

 

04151529

LC

48.950691

+44.066250

12.324

194

277.170

7.27736

03154822+4403573

 

04238859

LC

60.299000

+49.552528

11.923

290

277.170

2.77911

04011222+4933116

 

04325494

LC

65.713448

+43.916168

13.434

136

277.172

35.56864

04225123+4354515

 

04342609

LC

70.674080

+38.526932

12.596

219

275.169

3.29679

04424176+3831378

 

04522029

LC

86.789574

+41.164429

12.421

190

274.198

5.41262

05470982+4109526

 

04651034

LC

104.046341

+50.863110

13.193

149

275.173

2.30768

06561142+5051455

 

04680862

LC

103.513550

+44.032040

11.531

212

274.200

5.35266

06540323+4401542

 

05075475

LC

206.914597

+51.809662

12.256

191

274.210

4.66911

13473948+5148347

 

05728562

LC

305.206238

+40.550491

12.510

220

281.394

2.44794

20204933+4033026

 

05743393

LC

308.397797

+38.027382

9.672

51

421.249

10.59659

20333552+3801368

 

06222336

LC

350.411652

+34.713989

11.913

202

335.397

4.24128

23213879+3442517

1RXS J23138.5+344259

06386066

LC

9.887510

+27.508020

12.918

305

335.399

4.40136

00393302+2730295

 

06623348

LC

45.502430

+23.766781

12.409

272

375.393

4.15528

03020056+2346006

1RXS 030200.7+234608

06707761

LC

59.489262

+31.376949

12.714

148

421.310

3.19903

03575740+3122372

V* V379 Per

06742676

LC

59.169460

+26.055210

11.684

280

397.381

11.03660

03564068+2603202

 

06809672

LC

69.313507

+33.813629

11.779

201

397.381

4.52804

04371525+3348488

 

06841177

LC

74.202568

+30.593531

12.846

136

426.349

4.11850

04564858+3035364

V*GY Aur

06841510

LC

74.154114

+32.203041

10.306

94

415.384

13.61649

04563696+3212109

V*AM Aur

07228035

LC

109.558479

+30.633949

11.514

120

455.356

4.68750

07181434+3038092

 

07431417

LC

132.053375

+37.668121

11.710

98

274.224

2.29010

08481268+3740057

 

07741436

LC

220.023514

+26.567070

10.920

169

273.372

3.19749

14400568+2634021

V* GL Boo

08544767

LC

304.590332

+30.156019

10.318

86

274.396

45.49842

20182160+3009212

 

09450723

LC

69.942932

+22.197380

12.795

88

403.402

3.92896

04394628+2211503

 

09728354

LC

91.098999

+18.011480

12.043

194

409.439

5.47616

06042373+1800420

 

09839705

LC

99.904518

+9.261670

13.106

214

275.214

11.29039

06393692+0915471

 

10223113

LC

148.384140

+16.034750

10.901

136

491.436

3.39336

09533216+1602055

 

11461057

LC

308.160889

+20.028299

11.846

135

295.402

7.23961

20323858+2001430

GSC 01641-01245

11814354

LC

338.510712

+13.699000

11.200

207

310.418

2.37440

22340256+1341562

1RXS 223402.3+134201

11835300

LC

345.904144

+12.999740

10.453

138

311.426

15.76735

23033686+1300011

GSC 01166-00476

12387669

LC

85.016403

-1.328920

10.583

197

453.362

4.63362

05400391-0119429

V* V1403 Ori

13158483

LC

175.047058

-3.964390

11.934

171

274.270

2.38659

11401129-0357516

GSC 04934-01093

13638229

LC

259.463684

-1.319540

12.124

145

277.408

4.19706

17175131-0119076

 

14440503

LC

324.262268

+4.774560

12.706

191

306.433

5.37621

21370269+0446299

 

14449011

LC

326.566467

+5.050880

12.588

156

306.433

2.51835

21461598+0503025

 

14932154

LC

69.655457

-20.581430

13.671

146

426.411

3.35643

04383727-2034519

 

15011390

LC

84.980003

-12.669760

12.070

160

453.379

8.32250

05395518-1240131

 

15121376

LC

93.632790

-14.236850

11.423

147

453.379

3.37502

06143192-1414144

 

15984457

LC

187.612244

-17.981560

11.780

114

274.287

5.15669

12302695-1758534

 

16154232

LC

222.052704

-13.312430

11.136

125

274.291

20.96773

14481308-1318513

 

17100401

LC

303.106293

-11.560800

12.215

104

286.438

6.39364

20122556-1133437

 

17329412

LC

333.017090

-9.723710

13.140

108

348.388

4.89167

22120411-0943254

 

 

Acknowledgements: Thank you to M. Wood at Florida Institute for Technology and J. Coughlin at Emory University. This work has been funded by a partnership between the National Science Foundation (NSF AST-0552798) Research Experiences for Undergraduates (REU) and the Department of Defense (DoD) ASSURE (Awards to Stimulate and Support Undergraduate Research Experiences) programs. This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Aeronautics and Space Administration and the National Science Foundation.  We also thank Northern Sky Variability Survey (NSVS) and the University of California, operator of the Los Alamos National Laboratory under Contract No. W-7405-ENG-36 with the US Department of Energy.

 

References:

 

Orosz, J.A., and Hauschildt, P.H. 2000, A&A, 364, 265

 

Skrutskie, M.F. et al. 2006, AJ, 131, 1163, The Two Micron All Sky Survey (2MASS): Public Data Release

   

Wozniak, P.R., et al., 2004, AJ, 127, 2436, Northern Sky Variability Survey: Public Data Release