Optical spectroscopy of DPVs and the case of LP Ara

Ronald E. Mennickent; Darek Graczyk; Zbigniew Kołaczkowski; Gabriela Michalska; Daniela Barría; Ewa Niemczura

doi:10.1017/S1743921311011306

Optical spectroscopy of DPVs and the case of LP Ara

Ronald E. Mennickent
, Darek Graczyk
, Zbigniew Kołaczkowski
, Gabriela Michalska
, Daniela Barría
, Ewa Niemczura

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

We present preliminary results of our spectroscopic campaign of a group of intermediate mass interacting binaries dubbed "Double Periodic Variables" (DPVs), characterized by orbital light curves and additional long photometric cycles recurring roughly after 33 orbital periods (Mennickent et al. 2003, 2005). They have been interpreted as interacting, semi-detached binaries showing cycles of mass loss into the interstellar medium (Mennickent et al. 2008, Mennickent & Kołaczkowski 2009). High resolution Balmer and helium line profiles of DPVs can be interpreted in terms of mass flows in these systems. A system solution is given for LPAra, based on modeling of the ASAS V-band orbital light curve and the radial velocity of the donor star.

Original language	English
Title of host publication	Active OB stars
Subtitle of host publication	structure, evolution, mass loss, and critical limits
Publisher	Cambridge University Press
Pages	527-528
Number of pages	2
Edition	S272
ISBN (Print)	9780521198400
DOIs	https://doi.org/10.1017/S1743921311011306
State	Published - Jul 2010
Externally published	Yes

Publication series

Name	Proceedings of the International Astronomical Union
Number	S272
Volume	6
ISSN (Print)	1743-9213
ISSN (Electronic)	1743-9221

Keywords

Stars: binaries
Stars: early-typ

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10.1017/S1743921311011306

Cite this

Mennickent, R. E., Graczyk, D., Kołaczkowski, Z., Michalska, G., Barría, D., & Niemczura, E. (2010). Optical spectroscopy of DPVs and the case of LP Ara. In Active OB stars: structure, evolution, mass loss, and critical limits (S272 ed., pp. 527-528). (Proceedings of the International Astronomical Union; Vol. 6, No. S272). Cambridge University Press. https://doi.org/10.1017/S1743921311011306

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title = "Optical spectroscopy of DPVs and the case of LP Ara",

abstract = "We present preliminary results of our spectroscopic campaign of a group of intermediate mass interacting binaries dubbed {"}Double Periodic Variables{"} (DPVs), characterized by orbital light curves and additional long photometric cycles recurring roughly after 33 orbital periods (Mennickent et al. 2003, 2005). They have been interpreted as interacting, semi-detached binaries showing cycles of mass loss into the interstellar medium (Mennickent et al. 2008, Mennickent \& Ko{\l}aczkowski 2009). High resolution Balmer and helium line profiles of DPVs can be interpreted in terms of mass flows in these systems. A system solution is given for LPAra, based on modeling of the ASAS V-band orbital light curve and the radial velocity of the donor star.",

keywords = "Stars: binaries, Stars: early-typ",

author = "Mennickent, \{Ronald E.\} and Darek Graczyk and Zbigniew Ko{\l}aczkowski and Gabriela Michalska and Daniela Barr{\'i}a and Ewa Niemczura",

year = "2010",

month = jul,

doi = "10.1017/S1743921311011306",

language = "English",

isbn = "9780521198400",

series = "Proceedings of the International Astronomical Union",

publisher = "Cambridge University Press",

number = "S272",

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booktitle = "Active OB stars",

edition = "S272",

}

Mennickent, RE, Graczyk, D, Kołaczkowski, Z, Michalska, G, Barría, D & Niemczura, E 2010, Optical spectroscopy of DPVs and the case of LP Ara. in Active OB stars: structure, evolution, mass loss, and critical limits. S272 edn, Proceedings of the International Astronomical Union, no. S272, vol. 6, Cambridge University Press, pp. 527-528. https://doi.org/10.1017/S1743921311011306

Optical spectroscopy of DPVs and the case of LP Ara. / Mennickent, Ronald E.; Graczyk, Darek; Kołaczkowski, Zbigniew et al.
Active OB stars: structure, evolution, mass loss, and critical limits. S272. ed. Cambridge University Press, 2010. p. 527-528 (Proceedings of the International Astronomical Union; Vol. 6, No. S272).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Optical spectroscopy of DPVs and the case of LP Ara

AU - Mennickent, Ronald E.

AU - Graczyk, Darek

AU - Kołaczkowski, Zbigniew

AU - Michalska, Gabriela

AU - Barría, Daniela

AU - Niemczura, Ewa

PY - 2010/7

Y1 - 2010/7

N2 - We present preliminary results of our spectroscopic campaign of a group of intermediate mass interacting binaries dubbed "Double Periodic Variables" (DPVs), characterized by orbital light curves and additional long photometric cycles recurring roughly after 33 orbital periods (Mennickent et al. 2003, 2005). They have been interpreted as interacting, semi-detached binaries showing cycles of mass loss into the interstellar medium (Mennickent et al. 2008, Mennickent & Kołaczkowski 2009). High resolution Balmer and helium line profiles of DPVs can be interpreted in terms of mass flows in these systems. A system solution is given for LPAra, based on modeling of the ASAS V-band orbital light curve and the radial velocity of the donor star.

AB - We present preliminary results of our spectroscopic campaign of a group of intermediate mass interacting binaries dubbed "Double Periodic Variables" (DPVs), characterized by orbital light curves and additional long photometric cycles recurring roughly after 33 orbital periods (Mennickent et al. 2003, 2005). They have been interpreted as interacting, semi-detached binaries showing cycles of mass loss into the interstellar medium (Mennickent et al. 2008, Mennickent & Kołaczkowski 2009). High resolution Balmer and helium line profiles of DPVs can be interpreted in terms of mass flows in these systems. A system solution is given for LPAra, based on modeling of the ASAS V-band orbital light curve and the radial velocity of the donor star.

KW - Stars: binaries

KW - Stars: early-typ

UR - https://www.scopus.com/pages/publications/84882781363

U2 - 10.1017/S1743921311011306

DO - 10.1017/S1743921311011306

M3 - Conference contribution

AN - SCOPUS:84882781363

SN - 9780521198400

T3 - Proceedings of the International Astronomical Union

SP - 527

EP - 528

BT - Active OB stars

PB - Cambridge University Press

ER -

Optical spectroscopy of DPVs and the case of LP Ara

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