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Spectral Atlas of Carbon Stars
The authors compiled this moderate-resolution spectral atlas to aid in the classification of carbon stars on the Revised MK System (Keenan 1993PASP..105..905K) as refined and... -
Kinematic & fundamental parameters; OB stars
Runaway OB stars are ejected from their parent clusters via two mechanisms, both involving multiple stars: the dynamical ejection scenario (DES) and the binary supernova... -
IRAC/MIPS photometry in Cha I
We present a census of circumstellar disks in the Chamaeleon I star-forming region. Using the Infrared Array Camera and the Multiband Imaging Photometer on board the Spitzer... -
HST observations of low-mass stars in IC 348
We investigate the low-mass population of the young cluster IC 348 down to the deuterium-burning limit, a fiducial boundary between brown dwarf and planetary mass objects, using... -
Revision of MK luminosity classes
The Hipparcos parallaxes of cool giants are utilized in two ways in this paper. First, a plot of reduced parallaxes of stars brighter than 6.5, as a function of spectral type,... -
IR photometry of LMC long-period variables
Infrared JHK photometry and visual spectra have been obtained for a large sample of long-period variables (LPVs) in the Large Magellanic Cloud (LMC). Various aspects of the... -
Spectral classification of O Vz stars from GOSSS
On the basis of the Galactic O Star Spectroscopic Survey (GOSSS), we present a detailed systematic investigation of the O Vz stars. The currently used spectral classification... -
Spectral classification of N159/N160 stars
We present a spectroscopic study of the N159/N160 massive star-forming region south of 30 Doradus in the Large Magellanic Cloud, classifying a total of 189 stars in the field of... -
NSVS variables automated classification
We have identified 4659 variable objects in the Northern Sky Variability Survey. We have classified each of these objects into one of the five variable star classes: (1)... -
Red supergiants in Magellanic Clouds
We investigate the red supergiant (RSG) content of the SMC and LMC using multiobject spectroscopy on a sample of red stars previously identified by BVR CCD photometry. We... -
SDSS M, L, and T dwarfs
An extensive sample of M, L, and T dwarfs identified in the Sloan Digital Sky Survey (SDSS) has been compiled. The sample of 718 dwarfs includes 677 new objects (629 M dwarfs... -
Precise spectral types for 372 A, F & G stars
This is the first in a series of two papers that address the problem of the physical nature of luminosity classification in the late A-, F-, and early G-type stars. In this... -
Praesepe & M 67 spectral standards
We present a grid of stellar classification spectra of moderate resolution (R~1500) in the range lambda lambda 5600-9000A, compiled from high signal-to-noise spectra of 275... -
Late B-type stars classification
In the fourth and final of a series of papers on the late B to the early F type stars, we refine the MK spectral classification system for the late B type stars and consider the... -
NGC 6611: A Cluster Caught in the Act
We have combined optical CCD photometry and spectroscopy with infrared imaging photometry to study the young cluster NGC 6611. We use these data to derive improved values for... -
Velocities in the Pup OB association area
The present investigation was undertaken to get more information about the structure and the rotation of our Galaxy in the Puppis OB association area, towards longitude... -
UBV and Radial Velocities of SMC Supergiants
From observations at the European Southern Observatory, spectrographic and photometric data are presented for 91 supergiant stars belonging to the Small Magellanic Cloud and its... -
LMC A-F supergiants
A survey for A-F type supergiants in the Large Magellanic Cloud has been carried out using UV objective prism plates. 890 objects were detected and their spectral types,... -
8500-8750{AA} high resolution spectroscopy
We present an Echelle+CCD high resolution spectroscopic atlas mapping the MKK classification system over the wavelength interval lambda 8500-8750 A, centered on the near-IR... -
Spectral classifications of 180 IR stars
A sample of 180 supposedly composite-spectrum stars has been studied on the basis of spectra obtained in the near infrared (8370-8780{AA}) at a dispersion of 33{AA}/mm. The...
