Institute of Astronomy

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Pennsylvania-Toruń Planet Search

Pennsylvania-Toruń Planet Search (PTPS) aims at detection of planets around 885 evolved stars: 515 giants, 238 subgiants and 132 dwarfs. The project is a result of collaboration of our group with prof. Alexander Wolszczan (PennState). Up to now 22 planetary systems have been detected around other stars.

The research is based on observations with the Hobby-Eberly Telescope in Texas and Telescopio Nazionale Galileo in the Canary Islands.

 


PTPS – planets around evolved stars

Pennsylvania-Toruń Planet Search (PTPS) aims at detection of planets around 885 evolved stars: 515 giants, 238 subgiants and 132 dwarfs. The project is a result of collaboration of our group with prof. Alexander Wolszczan (PennState). Up to now 22 planetary systems have been detected around other stars. The research is based on observations with the Hobby-Eberly Telescope in Texas and Telescopio Nazionale Galileo in Canary Islands.

The group involves: A. Niedzielski, A. Wolszczan, M. Adamów, K. Kowalik, G. Maciejewski, B. Deka-Szymankiewicz

Publications:
  • Niedzielski A., Konacki M., Wolszczan A., Nowak G., Maciejewski G. i in. (2007) A Planetary-Mass Companion to the K0 Giant HD 17092, ApJ 669, 1354
  • Niedzielski A., Goździewski K., Wolszczan A., Konacki M., Nowak G., Zieliński P. (2009) A Planet in a 0.6 AU Orbit Around the K0 Giant HD 102272, ApJ 693, 276
  • Niedzielski A., Nowak G., Adamów M., Wolszczan A. (2009) Substellar-Mass Companions to the K-Dwarf BD+14 4559 and the K-Giants HD 240210 and BD+20 2457, ApJ 707, 768
  • Gettel S., Wolszczan A., Niedzielski A., Nowak G., Adamów M., Zieliński P., Maciejewski G. (2012) Planets around the K-Giants BD+20 274 and HD 219415, ApJ 756, 53
  • Adamów M., Niedzielski A., Villaver E., Nowak G., Wolszczan A. (2012) BD+48 740-Li Overabundant Giant Star with a Planet: a case of Recent Engulfment?, ApJL 754, L15
  • Nowak G., Niedzielski A., Wolszczan A., Adamów M., Maciejewski G. (2013) BD+15 2940 and HD 233604: Two Giants with Planets Close to the Engulfment Zone, ApJ 770, 53
  • Niedzielski A., Villaver E., Wolszczan A., Adamów M., Kowalik K., Maciejewski G., Nowak G., García-Hernández D. A., Deka B., Adamczyk M. (2015) Tracking Advanced Planetary Systems (TAPAS) with HARPS-N I. A multiple planetary system around the red giant star TYC 1422-614-1, A&A 573, A36
  • Niedzielski A., Wolszczan A., Nowak G., Adamów M., Kowalik K., Maciejewski G., Deka-Szymankiewicz B., Adamczyk M. (2015) Three Red Giants with Substellar-Mass Companions, ApJ 803, 1
  • Adamów M., Niedzielski A., Villaver E., Wolszczan A., Kowalik K., Nowak G., Adamczyk M., Deka-Szymankiewicz B. (2015) Tracking Advanced Planetary Systems (TAPAS) with HARPS-N II. Super Li-rich giant HD 107028, A&A 581, A94
  • Niedzielski A., Villaver E., Nowak G., Adamów M., Kowalik K., Wolszczan A., Deka-Szymankiewicz B., Adamczyk M., Maciejewski G. (2016) Tracking Advanced Planetary Systems (TAPAS) with HARPS-N III. HD 5583 and BD+15 2375 – two cool giants with warm companions, A&A 588, A62
  • Niedzielski A., Villaver E., Nowak G., Adamów M., Maciejewski G., Kowalik K., Wolszczan A., Deka-Szymankiewicz B., Adamczyk M. (2016) Tracking Advanced Planetary Systems (TAPAS) with HARPS-N IV. TYC 3667-1280-1: The most massive red giant star hosting a warm Jupiter, A&A 589, L1
  • Villaver E., Niedzielski A., Wolszczan A., Nowak G., Kowalik K., Adamów M., Maciejewski G., Deka-Szymankiewicz B., Maldonado J. (2017) Tracking Advanced Planetary Systems (TAPAS) with HARPS-N V. A Massive Jupiter orbiting the very-low-metallicity giant star BD+03 2562 and a possible planet around HD 103485, A&A 606, A38

 


PTPS – spectroscopy

The group involves: A. Niedzielski, A. Wolszczan, M. Adamów, K. Kowalik, G. Maciejewski, B. Deka-Szymankiewicz

For a precise characterization of exoplanets detected within PTPS an extensive set of parameters describing the host stars is required. Therefore, spectroscopic analysis of all PTPS targets is being carried out in parallel to the planet search.

 

Publications:
  • Zieliński P., Niedzielski A., Wolszczan A., Adamów M., Nowak G. (2012) The Penn State-Toruń Centre for Astronomy Planet Search stars I. Spectroscopic analysis of 348 red giants, A&A 547, A91
  • Adamów M., Niedzielski A., Villaver E., Wolszczan A., Nowak G. (2014) The Penn State − Toruń Centre for Astronomy Planet Search stars, A&A 569, A55
  • Adamczyk M., Deka-Szymankiewicz B., Niedzielski A. (2016) Masses and luminosities for 342 stars from the PennState-Toruń Centre for Astronomy Planet Search, A&A 587, A119
  • Niedzielski A., Deka-Szymankiewicz B., Adamczyk M., Adamów M., Nowak G., Wolszczan A. (2016) The Penn State − Toruń Centre for Astronomy Planet Search stars III. The sample of evolved stars, A&A 585, A73