Hubble Space Telescope observations of planetary nebulae in the magellanic clouds. 2: SMP 85, a young planetary

1994 ◽  
Vol 426 ◽  
pp. 150 ◽  
Author(s):  
Michael A. Dopita ◽  
Emanuel Vassiliadis ◽  
Stephen J. Meatheringham ◽  
Holland C. Ford ◽  
Ralph Bohlin ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Planetary Nebulae ◽  
Magellanic Clouds ◽  
Space Telescope

Hubble Space Telescope Observations of Planetary Nebulae in the Magellanic Clouds

1997 ◽  
pp. 417-427 ◽  
Author(s):  
M. A. Dopita ◽  
P. R. Wood ◽  
S. J. Meatheringham ◽  
E. Vassiliadis ◽  
R. C. Bohlin ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Planetary Nebulae ◽  
Magellanic Clouds ◽  
Space Telescope

Hubble Space Telescope Observations of Planetary Nebulae in the Magellanic Clouds. I. The Extreme Type I SMP 83/WS 35

1993 ◽  
Vol 418 ◽  
pp. 804 ◽  
Author(s):  
Michael A. Dopita ◽  
Holland C. Ford ◽  
Ralph Bohlin ◽  
Ian N. Evans ◽  
Stephen J. Meatheringham
Keyword(s):  
Hubble Space Telescope ◽  
Planetary Nebulae ◽  
Magellanic Clouds ◽  
Type I ◽  
Space Telescope ◽  
Extreme Type

Hubble Space Telescope Observations of Planetary Nebulae in the Magellanic Clouds. IV. [O iii] Images and Evolutionary Ages

1996 ◽  
Vol 460 ◽  
pp. 320 ◽  
Author(s):  
M. A. Dopita ◽  
E. Vassiliadis ◽  
S. J. Meatheringham ◽  
R. C. Bohlin ◽  
H. C. Ford ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Planetary Nebulae ◽  
Magellanic Clouds ◽  
Space Telescope

scholarly journals Imaging of four planetary nebulae in the Magellanic Clouds using the Hubble Space Telescope Faint Object Camera

1992 ◽  
Vol 398 ◽  
pp. L41 ◽  
Author(s):  
J. C. Blades ◽  
M. J. Barlow ◽  
R. Albrecht ◽  
C. Barbieri ◽  
A. Boksenberg ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Planetary Nebulae ◽  
Magellanic Clouds ◽  
Space Telescope ◽  
Faint Object

scholarly journals Imaging and spectroscopy of Magellanic Cloud Planetary Nebulae obtained with the Hubble Space Telescope

1997 ◽  
Vol 180 ◽  
pp. 477-477
Author(s):  
E. Vassiliadis ◽  
M. Dopita ◽  
R. C. Bohlin ◽  
J. P. Harrington ◽  
S. J. Meatheringham ◽  
...  
Keyword(s):  
Emission Line ◽  
Hubble Space Telescope ◽  
Planetary Nebulae ◽  
Magellanic Cloud ◽  
Magellanic Clouds ◽  
Space Telescope ◽  
Imaging And Spectroscopy

The majority of planetary nebulae (PNe) at the distance of the Magellanic Clouds typically subtend 1 arcsec or less on the sky. The Planetary Camera onboard the Hubble Space Telescope has a scale of 0.044 arcsec per pixel and is therefore ideal to use to image these objects. At present, 16 LMC and 5 SMC objects have been imaged in the [O III] 5007 angstrom emission line, as part of this program. An additional 10 LMC and 5 SMC objects have been imaged in the same line under the Guaranteed Time Observer program.

scholarly journals UV Monochromatic Imaging of the Protoplanetary Nebula Hen 3-1475 Using HST STIS

Galaxies ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 141
Author(s):  
Xuan Fang ◽  
Martín Guerrero ◽  
Ana Castro ◽  
Jesús Toalá ◽  
Bruce Balick ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Critical Role ◽  
Planetary Nebulae ◽  
Emission Lines ◽  
Comparison Analysis ◽  
Space Telescope ◽  
Monochromatic Imaging ◽  
Protoplanetary Nebula ◽  
Low Dispersion ◽  
Negative Gradient

Collimated outflows and jets play a critical role in shaping planetary nebulae (PNe), especially in the brief transition from a spherical AGB envelope to an aspherical PN, which is called the protoplanetary nebula (pPN) phase. We present UV observations of Hen 3-1475, a bipolar pPN with fast, highly collimated jets, obtained with STIS on board the Hubble Space Telescope (HST). The deep, low-dispersion spectroscopy enabled monochromatic imaging of Hen 3-1475 in different UV nebular emission lines; this is the first of such attempt ever conducted for a pPN. The northwest inner knot (NW1) is resolved into four components in Mg ii λ 2800. Through comparison analysis with the HST optical narrowband images obtained 6 yr earlier, we found that these components of NW1 hardly move, despite of a negative gradient of high radial velocities, from −1550 km s - 1 on the innermost component to ∼−300 km s - 1 on the outermost. These NW1 knot components might thus be quasi-stationary shocks near the tip of the conical outflow of Hen 3-1475.

scholarly journals Hubble Space Telescope Images of Four Magellanic Cloud Planetary Nebulae

1993 ◽  
Vol 155 ◽  
pp. 213-213
Author(s):  
M. J. Barlow ◽  
J. C. Blades ◽  
S. Osmer ◽  
Keyword(s):  
Hubble Space Telescope ◽  
Planetary Nebulae ◽  
Circular Ring ◽  
Uniform Structure ◽  
Full Description ◽  
Type I ◽  
Space Telescope ◽  
Ring Shape ◽  
Faint Object ◽  
Northern Edge

Using the Faint Object Camera on-board the Hubble Space Telescope, we have obtained images of four planetary nebulae in the Magellanic Clouds, namely N2 and N5 in the SMC and N66 and N201 in the LMC. Each nebula was imaged through narrow-band filters isolating [O III] λ5007 and Hβ, for a nominal exposure time of 1000 seconds in each filter. The f/96 optical chain of the FOC was used, yielding 512×512 0.022 arcsec square pixels. Considerable detail is evident on the raw images and after deconvolution using the Richardson-Lucy algorithm, structures as small as 0.06 arcsec are easily discernible. Figure 1 shows NS and EW intensity cross-cuts through the deconvolved [O III] λ5007 images of SMC N2 and SMC N5. SMC N2 is a slightly ellleptical ringlike nebula, with its greatest elongation in the EW direction. The peak-to-peak dimensions of the ring are 0.21×0.26 arcsec2. SMC N5 has a circular ring shape, with the [O III] λ5007 image showing a clearly defined, nearly uniform structure, apart from a bright patch at the northern edge. The peak-to-peak diameter of the ring is 0.26 arcsec and the ring itself is significantly narrower than that of SMC N2, with a width as small as 0.06 arcsec (FWHM) in some places. LMC N201 is very compact, with a FWHM of 0.21 arcsec in the Hβ image. The Type I PN LMC N66 is a multi-polar nebula, with the brightest part having an extent of about 2 arcsec. Its structure is extremely complex, with several bright knots and faint loops visible outside the two bright lobes. A full description of our results can be found in Blades et al., ApJ,398, L41–44.

scholarly journals Imaging of Magellanic Cloud Planetary Nebulae by the Hubble Space Telescope

1993 ◽  
Vol 155 ◽  
pp. 212-212
Author(s):  
M. A. Dopita ◽  
S. J. Meatheringham ◽  
P. R. Wood ◽  
H. C. Ford ◽  
R. C. Bohlin ◽  
...  
Keyword(s):  
Point Spread Function ◽  
Hubble Space Telescope ◽  
Planetary Nebulae ◽  
Magellanic Cloud ◽  
Space Telescope ◽  
Point Spread ◽  
Spread Function ◽  
Made In

We have obtained Hubble Space Telescope (HST) Planetary Camera (PC) images of a number of Magellanic Cloud planetary nebulae. The objects, except for SMP 83 were observed as part of the Cycle I GO program. The observations were made in the [O III] λ5007Å line. The object SMP 83, was observed as part of the GTO program, and in this case observations were also made in the Hα line using the F650N filter. In order to characterise the point spread function, a star was placed at the same point on the chip as the PN. This allowed us to determine the diameters of barely resolved PN in an accurate manner, by convolving the PSF with a function until it matched the appearance of the PN image. The results are given in Table 1.

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