8 results on '"Fausnaugh, Michael"'
Search Results
2. TESS Data Release Notes: Sectors 14 – 19, Multi-Sector Search, DR28
- Author
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Burke, Christopher J, Fausnaugh, Michael M, Caldwell, Douglas A, Jenkins, Jon M, Smith, Jeffrey C, Twicken, Joseph D, Vanderspek, Roland, Doty, John, Ting, Eric B, and Villesenor, Joel S
- Subjects
Astrophysics - Abstract
This release note discusses the science data products produced by the Science Processing Operations Center at Ames Research Center from the multi-sector search of Sectors 14-19 observed with the TESS spacecraft and cameras as a means to document instrument performance and data characteristics.
- Published
- 2020
3. TESS Data Release Notes: Sector 19, DR26
- Author
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Fausnaugh, Michael M, Burke, Christopher J, Caldwell, Douglas A, Jenkins, Jon M, Smith, Jeffrey C, Twicken, Joseph D, Vanderspek, Roland, Doty, John, Ting, Eric B, and Villesenor, Joel S
- Subjects
Astrophysics - Abstract
This release note discusses the science data products produced by the Science Processing Operations Center at Ames Research Center from Sector 19 observations made with the TESS spacecraft and cameras as a means to document instrument performance and data characteristics.
- Published
- 2020
4. TESS Data Release Notes: Sector 17, DR24
- Author
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Fausnaugh, Michael M, Burke, Christopher J, Caldwell, Douglas A, Jenkins, Jon M, Smith, Jeffrey C, Twicken, Joseph D, Vanderspek, Roland, Doty, John, Ting, Eric B, and Villesenor, Joel S
- Subjects
Astrophysics - Abstract
This release note discusses the science data products produced by the Science Processing Operations Center at Ames Research Center from Sector 17 observations made with the TESS spacecraft and cameras as a means to document instrument performance and data characteristics.
- Published
- 2019
5. TESS Data Release Notes: Multi-Sector 14-16 DRN 23
- Author
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Burke, Chris, Fausnaugh, Michael M, Caldwell, Douglas A, Jenkins, Jon M, Smith, Jeffrey C, Twicken, Joseph D, Vanderspek, Roland, Doty, John, Ting, Eric B, and Villesenor, Joel S
- Subjects
Astrophysics - Abstract
TESS Data Release 23 consists of results from a transiting planet search conducted with the combined data from Sectors 14 through 16. Figure 1 shows the Right Ascension (RA) and Declination (Dec) of all two-minute targets, color-coded by the number of sectors for which each target was observed. Targets with new data in any of Sectors 14{16 that were observed in multiple sectors were subjected to a multi-sector planet search. The data are the same 2-minute cotrended light curves presented in previous single sector data releases. Table 1 provides basic information and data release numbers for the observations of each sector. The observations span an 80 day period.
- Published
- 2019
6. TESS Data Release Notes: Sectors 1 – 13, Multi-Sector Search, DR20
- Author
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Burke, Christopher J, Fausnaugh, Michael M, Caldwell, Douglas A, Jenkins, Jon M, Smith, Jeffrey C, Twicken, Joseph D, Vanderspek, Roland, Doty, John, Ting, Eric B, and Villesenor, Joel S
- Subjects
Astrophysics - Abstract
These Data Release Notes provide information on the processing and export of data from the Transiting Exoplanet Survey Satellite (TESS). This data release is a combined, multi-sector transit search only. The underlying data products from individual observing sectors have been previously released. The data products included in this data release are the Data Validation (DV) reports, time series, and associated xml les for the threshold crossing events (TCEs) found by searching a combined data set including data from multiple observing sectors. These data products were generated by the TESS Science Processing Operations Center (SPOC, Jenkins et al., 2016) at NASA Ames Research Center from data collected by the TESS instrument, which is managed by the TESS Payload Operations Center (POC) at Massachusetts Institute of Technology (MIT). The format and content of these data products are documented in the Science Data Products Description Document (SDPDD)1. The SPOC science algorithms are based heavily on those of the Kepler Mission science pipeline, and are described in the Kepler Data Processing Handbook (Jenkins, 2017)2. The Data Validation algorithms are documented in Twicken et al. (2018) and Li et al. (2019). The TESS Instrument Handbook (Vanderspek et al., 2018)3 contains more information about the TESS instrument design, detector layout, data properties, and mission operations. The TESS Mission is funded by NASA's Science Mission Directorate.
- Published
- 2019
7. TESS Data Release Notes: Sector 9 DR11
- Author
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Fausnaugh, Michael M, Burke, Christopher J, Caldwell, Douglas A, Jenkins, Jon M, Smith, Jeffrey C, Twicken, Joseph D, Vanderspek, Roland, Doty, John P, Ting, Eric B, and Villesenor, Joel S
- Subjects
Astrophysics - Abstract
This release note discusses the science data products produced by the Science Processing Operations Center at Ames Research Center from Sector 9 observations made with the TESS spacecraft and cameras as a means to document instrument performance and data characteristics.
- Published
- 2019
8. Reverberation Mapping of the Continuum Source in Active Galactic Nuclei
- Author
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Fausnaugh, Michael Martin
- Subjects
- Astronomy, Astrophysics, Black Holes, Active Galaxies, Accretion Disks
- Abstract
I present results from a monitoring campaign of 11 active galacticnuclei (AGN) conducted in Spring of 2014. I use the reverberationmapping method to probe the interior structures of the AGN,specifically the broad line regions (BLRs) and accretion disks. Oneof these AGN, NGC~5548, was also subject to multi-wavelength (X-ray,UV, optical, and near-IR) monitoring using 25 ground-based telescopesand four space-based facilities.For NGC~5548, I detect lags between the continuum emission atdifferent wavelengths that follow a trend consistent with theprediction for continuum reprocessing by an accretion disk withtemperature profile $T \propto R^{-3/4}$. However, the lags imply adisk radius that is 3 times larger than the prediction from standardthin-disk models. The lags at wavelengths longer than the {\it V}band are also equal to or greater than the lags ofhigh-ionization-state emission lines (such as He\,{\sc ii}\,$\lambda1640$ and $\lambda 4686$), suggesting that the continuum-emittingsource is of a physical size comparable to the inner broad-lineregion. Using optical spectra from the Large Binocular Telescope, Iestimate the bias of the interband continuum lags due to BLR emissionobserved in the filters, and I find that the bias for filters withhigh levels of BLR contamination ($\sim\! 20\%$) can be important forthe shortest continuum lags. This likely has a significant impact onthe {\it u} and {\it U} bands owing to Balmer continuum emission.I then develop a new procedure for the internal (night-to-night)calibration of time series spectra that can reach precisions of$\sim\! 1$ millimagnitude and improves traditional techniques by upto a factor of 5. At this level, other systematic issues (e.g., thenightly sensitivity functions and Fe{\sc ii} contamination) limit thefinal precision of the observed light curves.Using the new calibration method, I next present the data and firstresults from the optical spectroscopic monitoring component of thereverberation mapping campaign. Five AGN were sufficiently variableto measure continuum-H$\beta$ lags and super-massive black holemasses: MCG+08-11-011, NGC\,2617, NGC\,4051, 3C\,382, and Mrk\,374. Ialso obtain H$\gamma$ and \heii\ lags for all objects except 3C\,382.The \heii\ lags indicate radial stratification of the BLR, and themasses derived from different emission lines are in general agreement.The relative responsivities of these lines to continuum variations arealso in qualitative agreement with photoionization models.Finally, I measure optical continuum lags for the two most variabletargets, MCG+08-11-011 and NGC\,2617. I again find lags consistentwith geometrically thin accretion-disk models that have temperatureprofiles $T \propto R^{-3/4}$. The observed lags are larger thanpredictions based on standard thin-disk theory by factors of 3.3 forMCG+08-11-011 and 2.3 for NGC\,2617. Using a physical model, thesedifferences can be explained if the mass accretion rates are largerthan inferred from the optical continuum luminosity by a factor of 4.3in MCG+08-11-011 and a factor of 1.3 in NGC\,2617. While the X-rayvariability in NGC\,2617 precedes the UV/optical variability, the long2.6 day lag is problematic for coronal reprocessing models.
- Published
- 2017
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