MN Dra - In-the-Gap Dwarf Nova With Negative Superhumps

MN Dra - In-the-Gap Dwarf Nova With Negative Superhumps

The multi-site photometric observations of MN Dra were made over 77 nights in August-November, 2009. The total exposure was 433 hours. During this time the binary underwent two superoutbursts and five normal outbursts. During the course of first superoutburst period of positive superhumps decreased...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:arXiv.org 2011-02
Hauptverfasser: Pavlenko, Elena, Kato, Taichi, Andreev, Max, Sklyanov, Alexandr, Zubareva, Alexandra, Samsonov, Denis, Voloshina, Irina, Metlov, Vladimir, Shugarov, Sergey, Parakhin, Nikolay, Golovin, Alex, Antoniuk, Oksana
Format: Artikel
Sprache:eng
Schlagworte:
Dwarf novae
Outbursts
Photometry
Physics - Solar and Stellar Astrophysics
Superhumps (astronomy)
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The multi-site photometric observations of MN Dra were made over 77 nights in August-November, 2009. The total exposure was 433 hours. During this time the binary underwent two superoutbursts and five normal outbursts. During the course of first superoutburst period of positive superhumps decreased with extremely large \(\dot P = -1.5 \times 1.0^{-4}\) for SU UMa-like dwarf novae, confirming known behavior of MN Dra [1]. Between the superoutbursts MN Dra displayed negative superhumps. Their period changed cyclically around 0.096-day value.
ISSN:2331-8422
DOI:10.48550/arxiv.1102.4164