358 citations · 619 across the 13 of their papers we have counts for
13 papers
The bimodal initial mass function in the Orion Nebula Cloud
H. Drass, M. Haas, R. Chini +5
Due to its youth, proximity and richness the Orion Nebula Cloud (ONC) is an ideal testbed to obtain a comprehensive view on the Initial Mass Function (IMF) down to the planetary ma…
The substellar content of the ONC
Holger Drass, Rolf Chini, Dieter Nürnberger +5
The Substellar Initial Mass Function (SIMF) of many star-forming regions is still poorly known but the detailed knowledge of its shape will help to distinguish among the substellar…
The Multiplicity of High-Mass Stars
R. Chini, A. Barr, L. S. Buda +5
We report about an ongoing photometric and spectroscopic monitoring survey of about 250 O- and 540 B-type stars in the southern Milky Way with the aim to determine the fraction of…
A spectroscopic survey on the multiplicity of high-mass stars
R. Chini, V. H. Hoffmeister, A. Nasseri +2
The formation of stars above about twenty solar masses and their apparently high multiplicity remain heavily debated subjects in astrophysics. We have performed a vast high-resolut…
First firm spectral classification of an early-B pre-main-sequence star: B275 in M17
B. B. Ochsendorf, L. E. Ellerbroek, R. Chini +4
The optical to near-infrared (300 - 2500 nm) spectrum of the candidate massive Young Stellar Object (YSO) B275, embedded in the star forming region M17, has been observed with X-sh…
Photometric AGN reverberation mapping - an efficient tool for BLR sizes, black hole masses and host-subtracted AGN luminosities
M. Haas, R. Chini, M. Ramolla +5
Photometric reverberation mapping employs a wide bandpass to measure the AGN continuum variations and a suitable band, usually a narrow band (NB), to trace the echo of an emission…