Gemini GMOS spectroscopy of HeII nebulae in M 33

Spectroscopy of planetary nebulae in M 33 ⋆

Spectroscopic observations of 48 emission-line objects of M 33 have been obtained with the multi-object, wide field, fibre spectrograph AF2/WYFFOS at the 4.2m WHT telescope (La Palma, Spain). Line intensities and logarithmic extinction, cβ, are presented for 42 objects. Their location in the Sabbadin & D’Odorico diagnostic diagram (Hα/[S ii] vs Hα/[N ii]) suggests that >70% of the candidates ar...

Deep GEMINI GMOS - IFU spectroscopy of BAL QSOs : I . Decoupling the BAL ,

In this work we present the first results of a study of BAL QSOs (at low and high redshift), based on very deep Gemini GMOS integral field spectroscopy. In particular, the results obtained for the nearest BAL IR–QSO Mrk 231 are presented. Very deep three-dimensional (3D) spectra and maps clearly show that the BAL systems i and ii –mainly in the strong “absorption lines” Na IDλ5889-95 and Ca ii ...

Field Spectroscopy with the Gemini 8 - m Telescopes

We give an overview of the current and future IFU capabilities on the Gemini 8-m telescopes. The telescopes are well-suited to integral field spectroscopy and both telescopes will have optical and nearinfrared IFUs within the next few years. Commissioning for the GMOS IFU on Gemini North has begun recently and it is now available to the community. Future integral field instruments will take adv...

HST Spectroscopy of the Nucleus of M 33 1 Knox

We have used Hubble Space Telescope to obtain moderate resolution 11505700 Å spectroscopy of the nucleus of M33 and a blue star ∼ 1 arcsec NNW of the nucleus in an attempt to find the optical counterpart of the nuclear X-ray source and to characterize stellar populations in the nuclear region. The STIS spectra of the nucleus can be modelled in terms of two starbursts, one with a mass of about 9...

O-33: Serum Anti-M