The solid content of circumstellar disks is inherited from the interstellar medium: dust
particles of at most a micrometer in size. Protoplanetary disks are the environment where …

ABSTRACT The c2d Spitzer Legacy project obtained images and photometry with both
IRAC and MIPS instruments for five large, nearby molecular clouds. Three of the clouds …

We present a survey of the Orion A and B molecular clouds undertaken with the IRAC and
MIPS instruments on board Spitzer. In total, five distinct fields were mapped, covering 9 deg …

The exploration of novel platforms for highly sensitive and selective detection of species of
interest is always demanding. Photothermal sensors have emerged as a novel type of …

We present a uniform mid-infrared imaging and photometric survey of 36 young, nearby, star-
forming clusters and groups using Spitzer IRAC and MIPS. We have confidently identified …

Context. The physical properties of almost any kind of astronomical object can be derived by
fitting synthetic spectra or photometry extracted from theoretical models to observational …

We present a method to analyze the spectral energy distributions (SEDs) of young stellar
objects (YSOs). Our approach is to fit data with precomputed two-dimensional (2D) radiation …

We present a grid of radiation transfer models of axisymmetric young stellar objects (YSOs),
covering a wide range of stellar masses (from 0.1 to 50 M☉) and evolutionary stages (from …

Transitional disks are objects whose inner disk regions have undergone substantial
clearing. The Spitzer Space Telescope produced detailed spectral energy distributions …

The nearest young stellar groups are associated with" hubs" of column density exceeding 10
22 cm− 2, according to recent observations. These hubs radiate multiple" filaments" of …