Whether supernovae are major sources of dust in galaxies is a long-standing debate. We
present infrared and submillimeter photometry and spectroscopy from the Herschel Space …

We present deep, high-resolution optical spectra of two Galactic bulge planetary nebulae
(PN), M 1-42 and M 2-36. The spectra show very prominent and rich optical recombination …

Optical spectroscopic measurements show that gas in dusty, starbursting galaxies known as
ultraluminous infrared galaxies (ULIRGs) in the local Universe has a significantly lower …

Se presenta un resumen del estado actual de la investigación sobre las nebulosas
planetarias y sus estrellas centrales, y temas relacionados como los procesos atómicos en …

We present JWST images of the well-known planetary nebula NGC 6720 (the Ring Nebula),
covering wavelengths from 1.6 to 25 m. The bright shell is strongly fragmented with some 20 …

We describe the design of the Field-Imaging Far-Infrared Line Spectrometer (FIFI-LS),
operated as a Facility-Class instrument on the Stratospheric Observatory for Infrared …

MESS (Mass-loss of Evolved StarS) is a guaranteed time key program that uses the PACS
and SPIRE instruments on board the Herschel space observatory to observe a …

Although measuring the gas metallicity in galaxies at various redshifts is crucial to constrain
galaxy evolutionary scenarios, only rest-frame optical emission lines have been generally …

We present deep optical spectrophotometry of 12 Galactic planetary nebulae (PNe) and
three Magellanic Cloud PNe. Nine of the Galactic PNe were observed by scanning the slit of …

We present deep optical spectra of 23 galactic planetary nebulae, which are analysed in
conjunction with archival infrared and ultraviolet spectra. We derive nebular electron …