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JHKLM PHOTOMETRY: STANDARD SYSTEMS, PASSBANDS, AND INTRINSIC COLORS
The relations between colors of the JHKL systems of several observatories are examined, and linear relations are derived for transformation between the (J-K), (J-H), (H-K), and (K-L) colors in the
A stellar relic from the early Milky Way
TLDR
This work reports the discovery of a low-mass star with an iron abundance as low as 1/200,000 of the solar value, which suggests that population III stars could still exist and that the first generation of stars also contained long-livedLow-mass objects.
The β Pictoris Moving Group
Following the 1983 IRAS detection and subsequent imaging of its extensive dusty circumstellar disk, β Pictoris became the prototypical and most studied example of a potential forming planetary
UBVRI PHOTOMETRY II: THE COUSINS VRI SYSTEM, ITS TEMPERATURE AND ABSOLUTE FLUX CALIBRATION, AND RELEVANCE FOR TWO-DIMENSIONAL PHOTOMETRY.
The Cousins VRI system is proposed as an ideal system to adopt as the standard system for both Northern and Southern Hemisphere near-IR observations. Comparisons are made between (b-y), (G-R)6,
A single low-energy, iron-poor supernova as the source of metals in the star SMSS J031300.36−670839.3
TLDR
It is concluded that low-energy supernovae were common in the early Universe, and that suchsupernovae yielded light-element enrichment with insignificant iron.
The Hamburg/ESO R-process enhanced star survey (HERES). II. Spectroscopic analysis of the survey sample
We present the results of analysis of "snapshot" spectra of 253 metal-poor halo stars −3.8 ≤ (Fe/H) ≤− 1.5 obtained in the HERES survey. The snapshot spectra have been obtained with VLT/UVES and have
An absolutely calibrated T eff scale from the infrared flux method. Dwarfs and subgiants
Various effective temperature scales have been proposed over the years. Despite much work and the high internal precision usually achieved, systematic differences of order 100 K (or more) among
HE 0557–4840: Ultra-Metal-Poor and Carbon-Rich*
We report the discovery and high-resolution, high-S/N spectroscopic analysis of the ultra-metal-poor red giant HE 0557-4840, which is the third most heavy-element-deficient star currently known. It
HE 0107-5240, A CHEMICALLY ANCIENT STAR. I. A DETAILED ABUNDANCE ANALYSIS
We report on a detailed abundance analysis of HE 0107� 5240, a halo giant with ½Fe=HNLTE ¼� 5:3. This star was discovered in the course of follow-up medium-resolution spectroscopy of extremely
H I Shells in the Large Magellanic Cloud
A recent high-resolution H I survey of the Large Magellanic Cloud (LMC) shows that the structure of the neutral atomic interstellar gas is dominated by numerous shells and holes, as well as complex
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