144 citations · 1.2k across the 40 of their papers we have counts for
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The Young, Massive, Star Cluster Sandage-96 After the Explosion of SN 2004dj in NGC 2403
J. Vinko, K. Sarneczky, Z. Balog +12
The bright Type II-plateau supernova (SN) 2004dj occurred within the young, massive stellar cluster Sandage-96 in a spiral arm of NGC 2403. New multi-wavelength observations obtain…
Star Forming Regions in Cepheus
M. Kun, Z. T. Kiss, Z. Balog
The northern Milky Way in the constellation of Cepheus (100 deg < l < 120 deg; 0 deg < b < 20 deg) contains several star forming regions. The molecular clouds of the Cepheus Flare…
Star Forming Regions in Cassiopeia
M. Kun
This chapter describes the Galactic star forming regions in the constellation Cassiopeia, in the Galactic coordinate range 120 deg < l < 130 deg, -5 deg < b < +15 deg. At b > 10 de…
The Rapid Outbursting Star GM Cep: An EX-or in Tr 37?
Aurora Sicilia-Aguilar, Bruno Merin, Felix Hormuth +9
We present optical, IR and millimeter observations of the solar-type star 13-277, also known as GM Cep, in the 4 Myr-old cluster Tr 37. GM Cep experiences rapid magnitude variation…
New homogeneous iron abundances of double-mode Cepheids from high-resolution echelle spectroscopy
K. Sziladi, J. Vinko, E. Poretti +2
Aims: We define the relationship between the double-mode pulsation of Cepheids and metallicity in a more accurate way, determine the empirical metallicities of double-mode Cepheids…
Spectroscopic studies of star forming regions
Maria Kun
This paper reviews the results of studies of star forming regions, carried out at the Konkoly Observatory in the last two decades. The studies involved distance determination of st…
Low-mass star formation in Lynds 1333
M. Kun, S. Nikolic, L. E. B. Johansson +2
Medium-resolution optical spectroscopy of the candidate YSOs associated with the small, nearby molecular cloud Lynds~1333 revealed four previously unknown classical T Tauri stars,…
The first year of SN 2004dj in NGC 2403
J. Vinko, K. Takats, K. Sarneczky +17
New BVRI photometry and optical spectroscopy of the Type IIp supernova 2004dj in NGC 2403, obtained during the first year since discovery, are presented. The progenitor cluster, Sa…
The rapid fading of V1647 Orionis: the sudden end of a FUor-type eruption?
A. Kospal, P. Abraham, J. Acosta-Pulido +4
V1647 Ori is a young eruptive star, which went into outburst at the end of 2003. Since then, the object is gradually fading. In October 2005, however, V1647 Ori started a very rapi…
The Disappearing Act of KH 15D: Photometric Results from 1995 to 2004
C. M. Hamilton, W. Herbst, F. J. Vrba +14
We present results from the most recent (2002-2004) observing campaigns of the eclipsing system KH 15D, in addition to re-reduced data obtained at Van Vleck Observatory (VVO) betwe…
Star count analysis of the interstellar matter in the region of L1251
L. G. Balázs, P. Ábrahám, M. Kun +2
We studied the ISM distribution in and around the star forming cloud L1251 with optical star counts. A careful calculation with a maximum likelihood based statistical approach resu…
Long-term evolution of FU Orionis objects at infrared wavelengths
P. Ábrahám, Á. Kóspál, Sz. Csizmadia +3
We investigate the brightness evolution of 7 FU Orionis systems in the 1-100 micrometer wavelength range using data from the Infrared Space Observatory (ISO). The ISO measurements…
The 2004--2006 outburst and environment of V1647 Ori
J. A. Acosta-Pulido, M. Kun, P. Abraham +15
(Abridged) We studied the brightness and spectral evolution of the young eruptive star V1647 Ori during its recent outburst in the period 2004 February - 2006 Sep. We performed a p…
The infrared properties of the new outburst star IRAS 05436-0007 in quiescent phase
P. Ábrahám, Á. Kóspál, Sz. Csizmadia +3
We compiled and investigated the infrared/sub-mm/mm SED of the new outburst star IRAS 05436-0007 in quiescent phase. The star is a flat-spectrum source, with an estimated total lum…
The IC2118 association: new T Tauri stars in high-latitude molecular clouds
M. Kun, T. Prusti, S. Nikoli'c +2
We identified new pre-main sequence stars in the region of high-latitude molecular clouds associated with the reflection nebula IC2118, around l = 208 degr and b = -27 degr. The st…
Long-term evolution of FU Ori-type stars at infrared wavelengths
A. Kóspál, P. Ábrahám, Sz. Csizmadia
FU Orionis-type stars form a small class of variable Young Stellar Objects, defined by an optical outburst of 5-6 mag followed by gradual fading on a timescale of decades. Since th…
Probing the structure of a birthplace of intermediate-mass stars: Ammonia cores in Lynds 1340
M. Kun, J. G. A. Wouterloot, L. V. T'oth
Lynds 1340, a molecular cloud forming intermediate-mass stars, has been mapped in the NH_3(1,1) and (2,2) transitions with the Effelsberg 100m telescope. We observed the whole area…