Publications (34)
The galaxy population within the virial radius of the Perseus cluster
H. Meusinger, C. Rudolf, B. Stecklum +3
We investigate the galaxy population in a field of the Perseus cluster that roughly covers the virial radius of the cluster. The galaxies were selected on Schmidt CCD images in B a…
Gaia-supported re-discovery of a remarkable weak line quasar from a variability and proper motion survey
H. Meusinger, R. -D. Scholz
We demonstrate that VPMS J170850.95+433223.7 is a weak line quasar (WLQ) which is remarkable in several respects. It was already classified as a probable quasar two decades ago, bu…
Unusual quasars from the Sloan Digital Sky Survey selected by means of Kohonen self-organising maps
H. Meusinger, P. Schalldach, R. -D. Scholz +4
We exploit the spectral archive of the Sloan Digital Sky Survey (SDSS) Data Release 7 to select unusual quasar spectra. The selection method is based on a combination of the power…
Broad-band spectral energy distribution of 3000 Angstroem break quasars from the Sloan Digital Sky Survey
H. Meusinger, P. Schalldach, A. Mirhosseini +1
The Sloan Digital Sky Survey (SDSS) discovered a few unusual quasars with a characteristic break in the continuum around 3000 A that neither shows the typical structure of broad ab…
The reddest ISO-2MASS quasar
C. Leipski, M. Haas, R. Siebenmorgen +9
In the course of the NIR/MIR AGN search combining the 6.7 mu ISOCAM Parallel Survey and 2MASS we have discovered 24 type-1 quasars about a third of which are too red to be discrimi…
Ultraviolet variability of quasars: dependence on the accretion rate
H. Meusinger, V. Weiss
We compiled a catalogue of about 4000 SDSS quasars including individual estimators V for the variability strength, virial black hole masses M, and mass accretion rates dM/dt from t…
The ISO-2MASS AGN survey: On the type-1 sources
C. Leipski, M. Haas, H. Meusinger +9
We combined the ISOCAM Parallel Mode Survey at 6.7 micron (LW2 filter) with the Two Micron All Sky Survey in order to obtain a powerful tool to search for AGN independent of dust e…
A systematic search for novae in M31 on a large set of digitized archival Schmidt plates
M. Henze, H. Meusinger, W. Pietsch
This paper reports on the detection of optical novae in our neighbour galaxy M31 based on digitized historical Tautenburg Schmidt plates. The accurate positions of the detected nov…
The merger stage of the ultra-luminous infrared galaxy IRAS 03158+4227
H. Meusinger, B. Stecklum, Ch. Theis +1
We examine the merger stage of IRAS 03158+4227, one of the most luminous ULIRGs from the IRAS 2 Jy sample. Deep optical images are presented along with high-resolution NIR images a…
Narrow-line AGN in the ISO-2MASS Survey
C. Leipski, M. Haas, H. Meusinger +9
Context: A long-standing challenge of observational AGN research is to find type 2 quasars, the luminous analogues of Seyfert-2 galaxies. Aims: We search for luminous narrow-line t…
Var C: Long-term photometric and spectral variability of an LBV in M33
B. Burggraf, K. Weis, D. J. Bomans +6
So far the highly unstable phase of luminous blue variables (LBVs) has not been understood well. It is still uncertain why and which massive stars enter this phase. Investigating t…
The new nebula in LDN 1415 - A cry from the cradle of a low-luminosity source
B. Stecklum, S. Y. Melnikov, H. Meusinger
A survey for candidate Herbig-Haro objects was performed to search for evidence of star formation in Galactic dark clouds. For this aim true colour images were created from blue, r…
A comparison of compact, presumably young with extended, evolved radio active galactic nuclei
H. Meusinger, M. Mhaskey
Radio sources with peaked spectra (peaked spectrum sources, PSS) and compact symmetric objects (CSO) are powerful, compact, and presumably young AGNs and therefore particularly sui…
High-Resolution NIR Observations of the Circumstellar Disk System in the Bok Globule CB 26
B. Stecklum, R. Launhardt, O. Fischer +3
We report on results of near-infrared and optical observations of the mm disk embedded in the Bok globule CB 26 (Launhardt & Sargent 2001). The near-infrared images show a bipolar…
J004457+4123 (Sharov 21): not a remarkable nova in M31 but a background quasar with a spectacular UV flare
H. Meusinger, M. Henze, K. Birkle +8
We announce the discovery of a quasar behind the disk of M31, which was previously classified as a remarkable nova in our neighbour galaxy. The paper is primarily aimed at the outb…
UKIRT follow-up observations of the old open cluster FSR0358 (Kirkpatrick1)
D. Froebrich, H. Meusinger, C. J. Davis +1
We aim to characterise the properties of the stellar clusters in the Milky Way. Utilising an expectation-maximisation method we determined that the cluster FSR0358, originally disc…
A galaxy cluster in the innermost Zone of Avoidance, close to the radio phoenix VLSSJ2217.5+594
W. Kollatschny, H. Meusinger, M. Hoeft +5
The steep spectrum radio source VLSSJ2217.5+5943 shows a complex, filamentary morphology and a curved spectrum. Therefore, the source has previously been classified as a radio phoe…
Spectral variability of quasars from multi-epoch photometric data in the Sloan Digital Sky Survey Stripe 82
H. Meusinger, A. Hinze, A. de Hoon
We present a new approach to analysing the dependence of quasar variability on rest-frame wavelengths. We exploited the spectral archive of the Sloan Digital Sky Survey (SDSS) to c…
NTT follow-up observations of star cluster candidates from the FSR catalogue
D. Froebrich, H. Meusinger, A. Scholz
We are conducting a large program to classify newly discovered Milky Way star cluster candidates from the list of Froebrich, Scholz & Raftery (2007). Here we present deep NIR follo…
A large sample of Kohonen-selected SDSS quasars with weak emission lines: selection effects and statistical properties
H. Meusinger, N. Balafkan
We performed a search for WLQs in the spectroscopic data from the Sloan Digital Sky Survey Data Release 7 based on Kohonen self-organising maps for nearly 10^5 quasar spectra. The…
A QSO survey via optical variability and zero proper motion in the M92 field. IV. More QSOs due to improved photometry
J. Brunzendorf, H. Meusinger
We continue the QSO search in the 10 square degrees Schmidt field around M92 based on variability and proper motion (VPM) constraints. We have re-reduced 162 digitised B plates wit…
VPMS J1342+2840 - an unusual quasar from the variability and proper motion survey
H. Meusinger, D. Froebrich, M. Haas +3
We report the discovery of the highly peculiar, radio-loud quasar VPMS J1342+2840 (z ~ 1.3) from the variability and proper motion survey. We present spectroscopic, imaging and pho…
Abell 1430: A merging cluster with exceptional diffuse radio emission
M. Hoeft, C. Dumba, A. Drabent +16
Diffuse radio emission has been found in many galaxy clusters, predominantly in massive systems which are in the state of merging. The radio emission can usually be classified as r…
Spectroscopic distances of 28 nearby star candidates
H. Jahreiss, H. Meusinger, R. -D. Scholz +1
28 hitherto neglected candidates for the Catalogue of Nearby Stars (CNS) were investigated to verify their classification and to improve their distance estimates. All targets had a…
A Complete Sample of Soft X-ray Selected AGN: I. The Data
D. Grupe, B. J. Wills, K. M. Leighly +1
We present the optical spectra and simple statistical analysis for a complete sample of 110 soft X-ray selected AGN. About half of the sources are Narrow-Line Seyfert 1 galaxies (N…
The inner structure of the S0 galaxy NGC3384
H. Meusinger, H. A. Ismail, P. Notni
We re-investigate the lenticular galaxy NGC 3384, a member of the LeoI galaxy group, using HST and multi-colour Calar Alto observations. Various approaches are used to visualize th…
A large sample of Kohonen selected E+A (post-starburst) galaxies from the Sloan Digital Sky Survey
H. Meusinger, J. Brünecke, P. Schalldach and. A. in der Au
We aim to create a large sample of local post-starburst (PSB) galaxies to study their characteristic properties, particularly morphological features indicative of gravitational dis…
Spectroscopic classification and Gaia DR2 parallaxes of new nearby white dwarfs among selected blue proper motion stars
R. -D. Scholz, H. Meusinger, A. Schwope +2
AIMS: With our low-resolution spectroscopic observing program for selected blue proper motion stars, we tried to find new white dwarfs (WDs) in the solar neighbourhood. METHODS: We…
FSR1735 -- A new globular cluster candidate in the inner Galaxy
D. Froebrich, H. Meusinger, A. Scholz
We carry out a large program to classify newly discovered star clusters from Froebrich et al. (2006) in the inner Galaxy. Here, we present a first analysis of a new high-priority g…
FSR0190 - Another old distant galactic cluster
D. Froebrich, H. Meusinger, C. J. Davis
We are conducting a large program to classify newly discovered Milky Way star cluster candidates from Froebrich et al. (2007). Here we present NIR follow-up observations of FSR0190…
Search for nearby stars among proper motion stars selected by optical-to-infrared photometry. I. Discovery of LHS 2090 at spectroscopic distance of d=6pc
R. -D. Scholz, H. Meusinger, H. JahreiÃ
We present the discovery of a previously unknown very nearby star - LHS 2090 at a distance of only d=6 pc. In order to find nearby (i.e. d < 25 pc) red dwarfs, we re-identified hig…
A QSO survey via optical variability and zero proper motion in the M92 field.III. Narrow emission line galaxies
H. Meusinger, J. Brunzendorf
We study a sample of 23 narrow-emission line galaxies (NELGs) which were selected by their strong variability as QSO candidates in the framework of a variability-and-proper motion…
Magnetic white dwarfs in post-common-envelope binaries
S. G. Parsons, B. T. Gänsicke, M. R. Schreiber +5
Magnitude-limited samples have shown that 20-25 per cent of cataclysmic variables contain white dwarfs with magnetic fields of Mega Gauss strength, in stark contrast to the approxi…
QSOs from the variability and proper motion survey in the M3 field
H. Meusinger, R. -D. Scholz, M. Irwin +1
We present results of the spectroscopical follow-up observations of QSO candidates from a combined variability and proper motion (VPM) survey in a ~10 square degrees region centere…