Brown dwarfs are the coolest class of stellar objects known to date. Our present perception
is that brown dwarfs follow the principles of star formation, and that brown dwarfs share …

Directly detecting thermal emission from young extrasolar planets allows measurement of
their atmospheric compositions and luminosities, which are influenced by their formation …

We present final Spitzer trigonometric parallaxes for 361 L, T, and Y dwarfs. We combine
these with prior studies to build a list of 525 known L, T, and Y dwarfs within 20 pc of the …

We present improved estimates of several global properties of the Milky Way, including its
current star formation rate (SFR), the stellar mass contained in its disk and bulge+ bar …

We present the full results of our decade-long astrometric monitoring programs targeting 31
ultracool binaries with component spectral types M7–T5. Joint analysis of resolved imaging …

We report JWST/NIRSpec spectra of three distant T-type brown dwarfs identified in the
Ultradeep NIRSpec and NIRCam ObserVations before the Epoch of Reionization …

We present a new volume-limited sample of L0–T8 dwarfs out to 25 pc defined entirely by
parallaxes, using our recent measurements from UKIRT/WFCAM along with Gaia DR2 and …

We present the results of a near-infrared (NIR) spectroscopic follow-up survey of 182 M4–L7
low-mass stars and brown dwarfs (BDs) from the BANYAN All-Sky Survey (BASS) for …

Observations of extrasolar planets were not projected to be a substantial part of the Spitzer
Space Telescope's mission when it was conceived and designed. Nevertheless, Spitzer was …

We present preliminary trigonometric parallaxes of 184 late-T and Y dwarfs using
observations from Spitzer (143), the US Naval Observatory (18), the New Technology …